A mom suddenly vanishes and a dad is under suspicion, but there was no body, weapon or eyewitness, and surprises cropped up along the way.

Investigating whether a toddler left in the car for seven hours while his dad was at work was a heartbreaking accident or murder.

Melissa Lewis disappears, leaving signs of a struggle and a strange orange mist behind her; her boss goes missing and leaves behind an even bigger mess, and a missing fortune.

This part of the Lone Star State is largely sheltered from hurricanes, but, as it turned out, not from one unnatural disaster.

After a young mom is found dead on the side of a country road, 40 miles from her Knoxville home, investigators scramble to figure out how she ended up there.

At first, the fatal fire that swept through the home of a young couple looked like an accident then investigators took a closer look and what they discovered about the fire, and this couple, left them burning with suspicion.

A 4-year-old girl abducted and raised by her kidnapper spends decades trying to get back home, and she finally accomplishes her goal; as it turns out, that ending was only the beginning.

After an attack on a respected U.S. Army major in the middle of the night, police launch an investigation that reveals wild secrets -- secrets that might hold the key to murder.

A hockey player finds his wife murdered in their home; his daughter says she saw a robber, but the killer's identity turns out to be far more complicated; police have their suspects but her family members have questions of their own.

After Christina, the twenty-three-year-old fashionista, goes out to a high-end shopping mall on a Friday night and vanishes, police question everyone; they know someone is lying, but not who.

A double murder reveals a double life; the victims are a well-respected couple whose son plays poker for a living; his alibi is his ace in the hole, but when detectives find key evidence, they think they are holding all the cards.

A couple who made a fortune in gold is headed for divorce when the wife is murdered; on tape, the husband is not at the crime scene, but police think the video holds the key to unlocking a mystery.

A woman's life ends in mystery on a dead end road; a mother of three, loved by her family and tight-knit community; for years the murder investigation went cold, but secrets have a way of eventually coming out.

Big sky country and a dangerous highway set the scene of a fatal car crash; determining if the tragedy was an accident or a crime and the secrets behind the truth hiding in text messages sent just before a car crossed the line.

A popular teacher is savagely murdered in her home; there is an arrest, a trial, and a conviction, but when a bombshell comes in after the verdict, the convicted murderer is given a chance at freedom.

If a killer is still free after 25 years, then maybe they got away with murder; the trail goes cold, never to warm up again, until one day it does.

A newlywed receives terrifying emails with threats of kidnapping and death; the emails appear to come from an ex-girlfriend, but hiding behind the threats is a cyber-secret.

A woman disappears while on her morning jog.

A wife and a mistress vying for the same man end up in a high-speed showdown on a highway; after the man of their dreams, on his motorcycle nearby, gets struck and killed, his wife becomes accused of his murder.

A mother, her son and a cousin are kidnapped by terrorists while on vacation; a father turned negotiator tries to end the international hostage drama, but the price of freedom is a huge ransom.

A beloved kindergarten teacher and mother of two finds a new lease on life after shedding hundreds of pounds; when she suddenly vanishes from her home, investigators uncover a connection between her dramatic weight loss and mysterious disappearance.

A California couple's romantic getaway on a boat turns tragic when the young wife and mother is lost at sea; the case goes cold for years until a model with a checkered past goes undercover to find the truth.

At first it looked like a home invasion gone wrong at the house Ralph Candelario shared with his second wife, but when police learn the antique dealer's first wife had disappeared, they take a closer look.

After a young Army veteran disappears, detectives uncover a cryptic 911 call placed 11 days before she went missing, which exposes a twisted story -- and the truth.

A foreign exchange student and soccer player's participation in a dangerous game leads to deadly consequences.

When detectives track down the killer of a Las Vegas cocktail waitress and mother, it becomes clear that the investigation has just begun.

As detectives struggle to find leads in the murder of a college student, the perpetrator strikes again.

Robert Davis, who was convicted of murdering a woman and her son, claims his confession was coerced and tries to prove he is innocent.

An investigation into the murder of a beloved couple in South Carolina reveals a feud and divides a family.

When a Chicago woman from a big family goes missing, investigators begin to suspect a man in her life is full of secrets.

After a woman reports a prowler, police find her Olympic bronze medalist husband dead in their backyard.

When remains are found amid the rubble after a house fire, authorities soon discover the incident was no accident.

Before time runs out, detectives race to find a Little Rock, Ark., realtor who went missing after showing a house.

Dark secrets come to light as officials investigate what happened to a wife and mother of three who was found dead in her bathtub.

A community is left in shock when a Cornell student and star athlete gets caught in the middle of a homicide investigation.

The security cameras at the home of a wife and mother of three's home may hold the key to solving the mystery of her disappearance.

A mother of two and a beloved kindergarten teacher finds a new lease on life when she loses hundreds of pounds. Her sudden disappearance causes concern, and police believe her sudden weight loss and disappearance are connected.

A couple's romantic boat trip turns tragic when a young wife is lost at sea. Did she accidentally drown or was it something more sinister? The case was cold for years until a model with a checkered past goes undercover to find the truth.

What happened that September night when romance turned to danger? Something went terribly wrong and a woman slipped over the edge of a cliff. Did she fall by accident or was she pushed? It would take almost 20 years to find answers.

It was a plot straight out of an Alfred Hitchcock film. A woman peers into a neighbor's yard and catches a glimpse of something unsettling. What she saw and what she did set a chain of events in motion that would divide a family and a jury.

It began with a young mom abducted at gunpoint. Her family and veteran investigators spent desperate days trying to find out where she was but they never could have guessed WHO had her and WHY.

Detectives often hit dead ends that can stop them cold but, for one young detective, dead ends were just another place to start. She'd beaten the odds in her own life. Now, she was determined to beat them on the job using her head and her heart.

Was he missing or was he hiding? On the surface, it didn't make sense: He had a wife, a good job, a daughter he loved. Investigators were told he also had a secret and they went on an undercover mission to find the truth.

Kate Waring and Heather Camp meet on a train from Washington DC to Charleston SC. Kate suffered from depression due to molestation in her younger years. While turning her life around she was betrayed by Heather, a long time con-artist.

It started with a frightening horror flick from the '80s. Then decades later, it was happening for real. Four people were dead and investigators believed they were chasing a serial killer. Could this old movie hold the key to solving these cases?

For investigators, motive can be the hardest thing to find. This crime took place in Florida but detectives didn't discover a motive for murder until they looked into a tropical island thousands of miles away, where a festering grudge was born.

Dr. Mark Weinberger was a successful surgeon hiding a secret from his medical staff and from his adoring wife. There was a malpractice suit and a death. Then the doctor vanished, sparking an international manhunt and a family's fight for justice.

Celebrity dog trainer Mark Stover and his wife, Linda, built a thriving business and a beautiful home but their dream life didn't last. An affair led to a bitter divorce. Then Mark vanished in a mystery with the makings of a Hollywood thriller.

It was Easter Sunday. The Stock family celebrated at home. Hours later, gunshots turned their farmhouse into a house of horrors. There was an arrest but one tiny clue didn't fit. This case was far from being solved.

A love triangle leads to a murder investigation when a beauty queen, a wife, and a guitarist become entangled in a scandal that causes one Florida man to use a passing hurricane as cover for him to hide from his past mistakes.

Young nursing student Michelle Le had disappeared. Something drew her out to her car. As her loved ones launched a very public effort to find Michelle, investigators began their own methodical search. Was she missing or murdered?

They were bright young women out for a little fun with their friends. Kenya Monge and Lydia Tillman didn't know each other but they would be forever related, both falling prey to a smooth-talking stranger with a terrifying secret.

Michelle Young was married to her college sweetheart and pregnant with their second child when she was murdered. In the search for her killer, detectives uncovered a marriage riddled with secrets but cracking this complicated case took years.

How well do you really know your neighbors? It's a question at the center of this mystery. The neighbors you're about to meet enjoyed mixing business with pleasure then a murder made them face the reality that a killer was in their midst.

Judy Carlson lived in a painful limbo. Her son disappeared without a trace. Years went by and she may never have known his fate if not for a rookie detective's dogged work but to solve this cold case, the investigator also need the help of a killer.

Steven B. Williams was a DJ with a golden voice. Then he vanished. It was a mystery that stretched from California to Montana, and the clue to it all? It was wrapped in a napkin, tucked in a cabinet, hidden in a library, but would anyone find it?

Jack Jessee was a family man who didn't seem to have an enemy in the world, up until the night he was killed. Was someone carrying a secret grudge? The case went cold but a relentless detective was determined to catch Jack's killer

Soon after Angie Dodge was murdered, Christopher Tapp admitted he was one of her killers. Police captured his confession on videotape so why would the victim's mom, who once campaigned to put Tapp in prison, now be fighting for his freedom?

Larry McNabney had a thriving career and a wife he adored. Then he vanished. It was a mystery as twisted as they come. At its center: three lives tangled together in a love triangle, including one of them who was hiding a secret identity.

When Karen Pannell was found stabbed to death, a message scrawled in blood seemed like a beacon that could lead detectives to her killer. But what exactly did it mean? It would take a dogged forensic specialist with a keen eye to unravel the mystery.

It was a mystery that stumped investigators for years. A college student disappeared after a night out clubbing. Her mother thought she was at a sleepover with friends and it took an eagle-eyed detective to find the truth buried in a pile of lies.

A young mom, married to her high school sweetheart, vanishes. Did she leave her family to start a new life or was there another reason for her disappearance? Decades later her grown son faced a dark truth at the core of this mystery.

She was a dancer who married a dashing photographer. They seemed to have the picture-perfect life -- until the bone-chilling night she disappeared. In a case filled with twists, could the victim help solve her own murder?

A former homecoming queen taking her first steps into adult life is brutally murdered. Who would want to harm her? The investigation centered on two men and a mysterious black bag that seemed to come out of nowhere.

It was a brutal and baffling crime: a husband shot dead in his own bed. No one else in the house was hurt, not even his wife, who was sleeping beside him. Investigators were suspicious, but there were more surprises in store.

It's a mystery with a mind-boggling twist. The deputy warden's wife claimed she was kidnapped by an escaped convict and held captive for more than a decade. But was she really a hostage or a willing accomplice?

A smooth convict was offered a deal as tempting as it was dangerous: get key information from a suspected serial killer to win your freedom. The catch? He'd have to go undercover in a psychiatric prison with no guarantee of getting out alive.

When the wealthy heir to a legendary hotel is murdered, the list of possible suspects is long. He had his share of enemies, and a complicated family. Investigators soon learned someone close to the victim was also in danger.

It's a true Hollywood whodunit. A show business stuntman was shot four times and left to die. Investigators uncovered a love story gone wrong and a villain with a dark secret. But the most stunning twist of all is what didn't happen.

She was a beaming bride. It was a haunting death. Sarah and Ryan were newlyweds when she drowned in the bathtub. Did she die of natural causes or was it deliberate? It took three trials to find the truth.

It all began when a bestselling author found his wife at the base of the stairs. Was this a fall or was it a crime? The story made headlines and we've been covering it for more than a decade. Here, Michael Peterson answers our questions.

A woman is murdered in a home invasion. Then, her best friend and neighbor is shot the following night. Investigators unearth disturbing secrets that suggest the cases may be linked.

When Cathy Torrez never came home after work, her family feared the worst. An intensive search ended after her car was found, with her body in the trunk. Who would commit such a savage crime? It take years to get to the truth.

A talented, young art student was murdered. The killer left no fingerprints and no DNA. Police zeroed in on three fellow students and, soon, the dark portrait of a killer began to emerge.

It's a gripping case that defies easy answers and Dateline has been following it for more than a decade. At the center, Steven Avery. He and his nephew were convicted of killing Teresa Halbach. Two sides. One truth. Who will you believe?

Nicole Pietz was a well-liked fitness executive married to the man of her dreams. Then one night, she didn't show up for dinner with her husband and friends. Had Nici's troubled past caught up with her or did someone want to harm her?

It was a marriage of opposites and yet somehow Debbie Kelly and Lars Itzo made it work. Then, Debbie was shot dead in the dark of night. Was her death a case of mistaken identity or the bloody end to a marriage gone bad?

When a young woman is found brutally murdered, investigators start to lose hope when they believe that the case is unsolvable, but the victim's mother is determined to get justice and figure out what happened to her daughter.

A young man from small town Indiana heads to Japan where he falls for a beautiful woman from a land nearly as far away. Then, one of the biggest natural disasters in history hits. With whole towns being wiped out, would they survive?

It was a crime not even police could believe: A toddler was shot in the head and left for dead. Despite the odds, she stunned everyone with her will to survive while a detective vowed to crack this case, no matter how long it took.

When Debbie Hawk vanished, her friends and family were left searching for answers. Investigators discovered that before she went missing, Debbie planned to reveal secrets. Police wondered if silencing her was a motive for murder.

A dedicated Air Force Captain who had been deployed overseas for long stretches found himself caught in the crossfire of a love triangle at home. Investigators discovered a tale of obsession and passion. Who pulled the trigger?

When Bonnie Craig was found dead, police collected DNA but it didn't match anyone in the system. Then, twelve years later, there was a hit but the man was thousands of miles away. Turns out, prosecutors would need more than DNA to convict a killer.

Newlywed Dalia Dippolito returned home from the gym to the awful news that her husband had been killed. In a case where almost nothing was as it seemed, investigators wanted to know: Was Dalia diabolical or an unwitting pawn in a hoax gone wrong?

Gavin Smith was dashing. When he vanished, LA detectives were unsure if they were investigating a crime or a suicide. His wife said he'd gotten lost in drugs and flings. Police wondered if the key to finding Gavin was hidden in one of those affairs.

Ashlea Harris had no shortage of admirers. So when she was found dead after a suspicious fire consumed her apartment, police were baffled. This was no accident but were the clues to who killed Ashlea now up in smoke?

Brandy Daniels believed someone was stalking her. Then, the single mother was found slumped over in her car, shot dead. Investigators would spend years navigating the twists and turns searching for her killer.

Debra Newell thought she found Mr. Right but her daughters sensed something wrong about John Meehan. They started digging into his past and their search for answers exposed a dangerous con man but would the truth be discovered too late?

Heidy and Conrad Truman were an enviable couple with a bright future. Then, one fateful night, Heidy was found shot and, just like that, she was gone. In the aftermath, fingers were pointed but were they aimed at an innocent person?

When a woman's body is discovered at a trash facility, a detective makes a promise to her mother to get justice. She doesn't know she will come face to face with a serial killer.

Wealthy residents felt safe in their gated community but it was not safe for one millionaire, murdered in his waterfront home. Police investigated but the case grew cold. Turned out the key to solving it, or two keys, were right at the front door.

The save the date cards had gone out. Angie Ver Huel went to sleep next to her fiancee, Justin Michael, with big dreams but woke up to a nightmare. Someone was running from their bedroom and Justin was dead. Why did the killer target him, sparing her?

A beautiful, popular graduate student is shot dead outside her apartment in Durham, North Carolina. Who would want her dead, and why?

It was an affluent neighborhood with tree lined streets. Violent crime was unheard of here until that morning when, under the very noses of the cops, a terrible murder occurred. Investigators found a riddle, a deception, a piece of pure evil.

When Todd Winkler was arrested for killing his wife Rachel, he claimed self-defense. Investigators learned Rachel wasn't the first Mrs. Winkler to die and traveled cross country to understand what happened on that camping trip a decade earlier.

After finding his wife and two children dead in his garage, a former Indiana state trooper spends 13 years trying to clear his name.

An explosion in a rice field in Colusa County, California kills farm manager Roberto Ayala. But was it an accident or murder?

Craig and Laura Rideout appeared happy but, after a contentious separation revealed an ugly secret, one of them would soon be dead. Clues pointed to four possible killers and left investigators wondering if this murder was all in the family.

It was an unthinkable crime. Brittany Eldridge was nearly nine months pregnant when she was found dead in her apartment. Investigators focused on two men with possible motives.

For many, the holiday season is filled with joy but, for the Jennings family, the night before Christmas became a waking nightmare. A gunshot rang out and investigators had to unravel whether a secret lead to a tragic suicide or if this was murder.

Diana Lovejoy and her husband welcomed a baby boy, but then, their marriage crumbled. A bitter custody battle followed. Fearing for her safety, Diane turned to a man skilled in self-defense but, it turns out, someone else was in grave danger.

When a woman reappeared just two days after her boyfriend reported her abducted, police accused a couple of perpetrating a hoax. When another similar crime takes place, police decide to re-examine the case and find an unlikely suspect.

After a house fire in suburban New Jersey, investigators discover a twisted love triangle filled with jealously, love and murder.

After a house fire in suburban New Jersey, investigators discover a twisted love triangle filled with jealously, love and murder.

A group of adventurous Americans thought they had found paradise. It was a tropical hideaway, the kind of place where people didn't ask a lot of questions about their neighbors, until some of those neighbors started to disappear.

What happened in Cara Ryan's bedroom was a mystery. She admitted she shot her ex-husband, but investigators needed to know if it was murder or self-defense. Detectives heard several versions of the story, but for a jury, there was only one truth.

For a group of stage actors, life seemed to be imitating art in the worst way when a young college student was killed. Police believed they knew who was responsible, but this mystery had a grand finale no one saw coming.

For a day that ended so tragically, it started with roses. Nathan and Denise Leuthold had known each other since grade school. Together they built their family on faith, but in a flash, one of them was dead and the other was under suspicion.

Police believed a pair of double homicides in Nebraska, five years apart, might be connected. Investigators working to solve the crimes feared the killer might strike again. Could they catch him in time?

When a captivating, sweet nurtured single mom was found dead in her garage, detectives in Frisco, Texas uncovered a series of potential suspects, all of them connected in different ways to her complicated and secretive life.

When a woman falls to her death while hiking with her husband in Rocky Mountain National Park, rangers question if her death was an accident or a heinous act of violence.

They were two beautiful families living out their dreams, but gunshots in a parking lot revealed an ugly truth. Investigators uncovered three lives tangled in a love triangle. There were many secrets, but which one was the key to solving the mystery?

He dreamed of being the next Steve Jobs, a young entrepreneur who wanted to change the world. But his world came crashing down one morning with four gunshots. This was a crime of passion: a fatal triangle involving a husband, a wife and a boss.

Deede Keller had a loving family, a tight circle of friends and a new man in her life. When she vanished, disturbing clues would point investigators to a suspect with a dark secret. The case provided a twist that left the courtroom astonished.

It was Friday the 13th and something sinister was about to happen: a chilling double murder in an upscale home. The evidence seemed to tell a clear story. Then investigators discovered a marriage filled with secrets and a story that didn't add up.

A quiet night was shattered when intruders terrorized a Florida couple and their young son, killing one of them. Investigators questioned the initial story. Then, a tip led them to another family with dark secrets, and that's when bonds were tested.

Annie Kasprzak has a second chance at a happy life after being adopted by her case worker. Then, the 15-year-old vanishes. Her parents find a note in her room that reveals a secret Annie has been hiding.

Keith Bryan was a beloved fire chief, a pillar of his community. Then he was shot in his home, leaving police to wonder who would want to hurt the local hero? Turns out, someone was living a secret life, and it was about to be exposed.

Nona Dirksmeyer was a young beauty queen with a boyfriend she adored. They were planning a future together. Then, Nona was brutally killed. The crime shook her hometown and exposed someone with a secret past. But did the evidence add up to murder?

Kay Mortensen took pride in preparing for every threat, so when he was found dead at home, those who knew him were stunned. The killing put two of Kay's loved ones behind bars and in danger.

Jodi Arias and Travis Alexander had chemistry right from the start. Then he was killed, and she was arrested. The trial riveted millions, exposing Jodi's secrets. Yet, it did not solve one mystery: exactly who was this woman behind the veil of lies?

It started with a party, high school seniors celebrating graduation. Before the night was through, one man was dead and two teens were facing a long fight for justice.

The fire broke out before dawn. After the smoke cleared, a mother of two young children was found dead. It was the tragic end to a life that held so much promise, but for investigators, it was just the beginning. Was this an accident or murder?

Kevin and Morgan Mengel were happy at first, but when the marriage went bad, he went missing. Police wondered if he simply left, but a family’s relentless pursuit lead to a stunning confrontation and, eventually, the truth.

A family mourned the loss of a young mother in a house fire. Authorities ruled it an accident. Then, years later, there was another accident and second loved one was gone. Was this just a string of bad luck or the work of a calculating killer?

She was a savvy entrepreneur. He got his start in finance. Their connection was instant but when their summer love cooled, tempers flared and the relationship took a tragic turn. It seemed like an open and shut case but there was a surprise in store.

The doctor and the model made a stunning couple. Together they built a loving family. Her death was sudden but ruled natural causes. Secrets remained hidden for years. Then, her daughters became amateur detectives to help unlock the mystery.

It is a story of obsession that boiled over into a brutal crime. Right away, one woman said she knew what happened. Yet, it took years to bring the alleged killer to trial and the verdict was far from the end of this case.

Aasha Davis moved to Hollywood with big dreams. Her sister Lesley followed for support. Then, Lesley went missing and Aasha was desperate to find her. In a town built on deception, police came up with a high-stakes plan to smoke out their suspect.

It was just before Halloween. Joel Lovelien and his fiancee headed to a local bar packed with people in costume. Then, Joel stepped outside and walked into a troubling mystery. Police rounded up potential suspects, but could they unmask a killer?

Keith Reed was a highly-regarded school superintendent. When he didn't show up at an out-of-town conference, it set off alarm bells. Investigators took a hard look at his love life for clues and made a startling discovery.

Kelli Bordeaux was just starting what she hoped to be a long career in the military, but fate had other plans. When she vanished, friends and family launched a frantic search, but it was stranger hell-bent on justice who uncovered the ugly truth.

Sandra Galas was born and raised in paradise. So how did something so ugly happen there? Police investigated two men in Sandra's life, but the case went cold. Her father refused to give up, relentlessly pursuing the truth for more than a decade.

Diane McIver was a successful businesswoman who enjoyed a lavish lifestyle with her husband. Then she was gone. It was a mystery riddled with privilege and power, but investigators needed to answer a crucial question: was this an accident or murder?

She was a divorced mother excited about her next chapter in life. Then, five gunshots shattered her plans. Proving who murdered Joan Lockwood was a daunting task for police. An ominous killer was still out there and her family was living in fear.

Detectives believed two young children witnessed the unthinkable, the brutal murder of their mother. The prosecution's case would be built around what they thought those kids observed, but was another version of events possible?

This is a story of teens, text messages and a complicated search for the truth. Conrad Roy had vanished. Turns out, he shared a secret with someone close to him. What that confidant did and did not do with the information shattered two families.

Amanda Lindhout was a journalist braving the world's most dangerous hotspots. Then, she became the story. What she endured from her captors was terrifying. Years later they found her again and secret agents put a daring undercover sting into action.

For over a decade, El Chapo evaded authorities but one man was determined to catch the infamous kingpin. Former DEA agent Andrew Hogan comes out of the shadows to detail his search and capture with never-before-seen videos and photographs.

Angel's Landing was a community of free-spirits with Lou Castro at its center. Investigators were suspicious of the mysterious deaths happening there. Now, commune members have courageously decided to tell their stories in hopes of helping others.

This is a story about faith, temptation and secrets. A churchgoing mom was shot at point-blank range in her garage. Saving her would take a miracle and investigators wanted to know if this crime was random or if someone wanted her dead.

He was the hardworking dad, she the doting mom. In the still of the night, strangers armed with knives destroyed all they had built together. Turns out, someone was hiding an ugly secret. Police would hatch an elaborate plan to uncover the truth.

She was a young mom, pregnant with her second child, when she was gunned down on her way to work. Police zeroed in on the men in her life. To help find her killer, her sisters became amateur detectives and uncovered a secret.

Dateline has been covering this twisted tale for more than a decade. Pizza deliveryman Brian Wells robbed a bank with a bomb locked around his neck and, from there, it turned into one of the strangest cases the FBI has ever encountered

A bank executive tries to rob his own bank. Investigators think it is an inside job but eventually learn the crime is connected to a spree carried out by men who managed to keep their identities secret, praying on people who did the opposite.

Sandi Johnson always put her kids first. When she vanished without a word, her loved ones were frantic. Police discovered dark secrets in Sandi’s marriage and several men in her life. Which one of them had something to hide?

Cousins Nick Brady and Haile Kifer were best friends. To their family, they seemed like typical teenagers. Turns out, the cousins had a secret that led to tragedy. The story divided a small town and sparked a national debate.

After college student Angie Samota was stabbed to death, police had no shortage of suspects. A crucial clue narrowed their list to one name, but it would be years before technology and a tenacious friend came together to help unravel this mystery.

Marie Singleton was a single mom who fell hard for Andre Jackson, a single dad raising his two kids. The couple married and seemed happy. Then Marie vanished and investigators discovered secrets. Was her disappearance related to her undercover job?

Connie and Larry Hoagland built a life centered on faith and family. Then, a vicious attack threatened it all. Someone wanted Connie dead. But who? After a bomb exploded underneath her car, secrets started to emerge.

Eric Glisson was convicted of a murder he swore he didn’t commit. To prove his innocence, he had to find the real killers, unearthing their long-held secrets. It would take years for the truth to be revealed, but could it set him free?

Raven Abaroa swooped into Vanessa Pond’s life and stole her heart. Then Vanessa discovered her dream man had a tragic past. His first wife had been killed. Was he a grieving widower or somehow involved? Dark secrets were about to be spilled.

Wendy Trapaga was a beaming young bride. Then, just four days after saying “I do” she was found dead in a parking lot. Investigators discovered the newlyweds were keeping secrets. There was also someone else with a secret and it was combustible.

In high school, Christian, Erika and Pedro formed a tight trio: best friends who excelled at academics and shared big dreams. When they went to college something changed. It started with a secret romance and ended in tragedy.

Nikki Whitehead was a single mom working toward a brighter future. She found love, moved into a nice neighborhood and enrolled in college. Then, tragedy struck. Police searched for answers but one thing was certain. This crime was personal.

Bill and Shirley Carter had raised a family on their sprawling farm in America’s heartland. As their golden years approached, tragedy struck and the seeds of a mystery pitting one family member against another had been planted.

Vince Goslyn found his calling in the military. His career was thriving and he had built a beautiful family. Then one night, the father of five was gunned down. Did his decision to help someone in need cost him his life or was he targeted?

Amber Belken was a young woman with big dreams. Then, she was found murdered. Was Amber the victim of a robbery gone wrong or was this brutal crime personal? Three people knew the truth. Two of them would risk their lives to reveal it.

Heather Elvis was a young woman eager to make her mark on the world. Then she disappeared. Investigators discovered a love triangle and thought they had their motive. But there was a question the Elvis family still needed answered: Where was Heather?

Sandra and Jamie Melgar were high school sweethearts who were celebrating their 32nd anniversary. Then, the intimate evening turned deadly. To crack the case, investigators had to uncover the secrets of an illusion worthy of the great Houdini.

Lauren Giddings was smart, charismatic and a newly-minted law school graduate. She had dreams of becoming a public defender, then she was brutally murdered. Her killer tried to pull off the perfect crime, but a secret recording exposed the truth.

For an agonizing four days, the fear was paralyzing. A city was under siege. Six people had been gunned down, but how were the killings linked? A retired detective connected the dots, initiating the manhunt for a man with a gun and a grudge.

He was a single dad, a former firefighter dedicated to helping others. When he was found dead in his garage, police needed help. A neighbor’s security camera footage revealed a hooded figure, but who was it? Someone was hiding a deadly secret.

Devoted to her faith and her five children, Chanin Starbuck was recently divorced and starting life over. After she was brutally murdered, the investigation revealed secrets. The case divided a family. Could a jury unite on the truth?

He was a firefighter used to rescuing others. Now he was the one in desperate need of help. He found his wife bloodied and motionless on the bedroom floor. Could he save her in time? It was a chilling crime with no shortage of potential suspects.

Beloved by his colleagues, Mark Hasse was a fearless prosecutor. He worked to put criminals behind bars and making enemies was a hazard of the job. He didn’t know it, but a killer was lurking and Mark wasn’t the only target.

After Johnny Altinger vanished, the trail of clues led investigators to a young director. Detectives worried that the case was a hoax staged by a master storyteller. Turns out, the script was darker than anyone knew.

Susie Casey was an outgoing mother of four going through a divorce. She was twenty steps from her front door when she vanished. Police were investigating three men in her life. The unbelievable thing? They were all there the morning of her murder.

Melvin Roberts was larger than life. Former mayor. Prominent attorney. He even had a street named after him. When cops found him dead in his driveway, it marked the start of a tough case. In addition to friends, Melvin Roberts had plenty of enemies.

Linda Curry had it all: looks, a great job and a brilliant husband. When she got sick, doctors were stumped. Then, she died and police were as puzzled as the doctors, but not her close friends and family. They just needed someone to listen.

Rachel Anderson was a vivacious single mom whose world revolved around her children. When she failed to show up for work one day, her kids panicked. Might her disappearance have anything to do with those terrifying phone calls she’d been receiving?

Karen and Mark Duenas had a special marriage. Teenage sweethearts, the couple managed to keep the romance alive even after raising five boys together. Then a perfectly ordinary night ended in murder, a tragedy that would test the bonds of family.

It was in the still of the night when it started. A cold-blooded serial killer, lurking in the woods, peeping through windows and stalking for his next victim. It's a tale that would be hard to believe, if it didn't really happen.

At first, Mischele Lewis' new boyfriend seemed almost too good to be true. She would learn her dream man did have secrets, but was he just playing spy games with her? A single mom goes on a dangerous mission of her own to find out the truth.

A tech giant living in paradise. His neighbor found dead. Then, suddenly, the entrepreneur extraordinaire was on the run, taunting authorities and tantalizing the press. It was a riveting game of hide-and-seek, but were police chasing the right man?

Wendy Ratte, a free-spirited mother of two, was missing. Police investigated: a bitter feud with a neighbor, a possible serial killer. Or, did danger lurk closer to home? It'd take an elaborate, undercover mission to finally crack this case.

Barbara George was murdered in her comic store on Friday the 13th. The case went cold and her husband moved away, starting a new life with a new wife. But then there was a new prosecutor with an old connection to the case, and he wanted it solved.

Brett and Vashti were high school sweethearts now busy raising two boys. Then a fire ripped through their home. In the ashes, investigators found a mystery. What happened that night was no accident.

He was a force on the football field. Then, the charming athlete was shot. His killer left few clues and the case sat cold until someone spilled a secret. What police asked the tipster to do next would make her a target. How much would she risk?

It was a riveting mystery with two puzzling deaths, both at the same mansion. First, a boy was found near the bottom of the stairs and police ruled it an accident. Then, there was an apparent suicide at the guest house. What was really happening?

Jessica Nelson was a hardworking single mom. Then, one morning, she was found dead in her home. The discovery left her family shattered and their ordeal had just begun. Turns out, the killer was someone they knew.

Marie Carlson was radiant but behind the glow she hid a darkness. For a while, Marie drifted but, then, a pastor and his wife welcomed her into their lives. It was a spiritual awakening which made Marie’s disappearance all the more mysterious.

Skylar Neese was everything her parents hoped for, but their world turned upside down when she vanished without a trace. At first, police thought she ran away but hints on social media pointed to a more sinister reason for her disappearance.

When a mother of four dies unexpectedly on Valentine's Day, everyone in town assumes she died of natural causes until a detective suspects someone has gotten away with murder.

Halee Rathgeber enjoyed taking care of others, so it made sense that she hoped to become a nurse. What made no sense was that someone wanted her dead. The crime scene told detectives little, but a jaw-dropping moment in the courtroom spoke volumes.

Michele and Lloyd Neurauter were devoted to their three daughters, even after divorce. When Michele was found dead in her home, police suspected suicide. Then, they uncovered a deadly betrayal too twisted to be true. Except that it was.

A forty-year-old man was found dead in his car. Initially, there was no obvious medical explanation for Tom’s death but when police uncovered a love triangle, this tragedy quickly turned into a tangled mystery.

A single mother of three vanishes and potential suspects emerge when police discover she may have been living a double life.

An investigation into the mysterious murder of a businessman exposes a tangled web of evil that extends from the Pacific Northwest into the North Dakota oil patch.

In the town of Prescott, AZ, Carol Kennedy returns from an evening jog and calls her mother for their nightly chat; the call ends abruptly and so begins the mystery on Bridle Path.

The crime was big news in a small town. Police were swift to key on a suspect. He was a local hero. It was a hunt for justice but was it also the hounding of an innocent man?

Frank Rodriguez was a Navy vet who dedicated his life to helping needy children, not a guy with many enemies. Figuring out who would want him dead was a challenge. How he died was also a mystery investigators needed to solve to catch his killer.

When Eric Somuah was found shot in his bed, it was hard to imagine who would want the outgoing salesman dead. One dogged detective refused to give up. His investigation put him on a path filled with twists, turns and an ending few saw coming.

The life of a married father of two and successful real estate appraiser ends all too soon; investigators wonder if money is a motive, or if the murder is the result of a family rift.

Sabrina admits to killing Lisa, but no one understands why, which complicates the case immensely.

A successful, seemingly healthy doctor collapses at home and is rushed to the ER, leaving friends and colleagues puzzled.

Missing wife. Grieving husband. Turns out, both had secrets. Jen Ramsaran vanished just before Christmas and detectives needed to know if her online life held the key to this mystery or if the answer was closer to home.

Investigators go to unexpected depths to solve the mystery of missing Lynn Friend, a devoted mother who had wedding plans when she vanished.

A top doctor known for saving lives found himself fighting for his own after he was poisoned. Investigators immediately started looking into the women in his life, wondering if one relationship was toxic.

Chiquita Tate was growing her reputation as a tenacious defense attorney but her promising career was cut short when she was murdered. Police had a challenge. At work, she dealt with tough clients, and at home, she was going through a rough time.

The Harkey name was famous for pecan harvesting in Texas; the matriarch, with a powerful grip on the family fortune, went missing, so investigators focused on the family; in fact, the plot was more tangled than the branches of a pecan tree.

A college freshman is found brutally beaten, a crime scene so bloody police can't identify the victim, but identifying the killer was easier -- and his motivation for the killing becomes the foundation for his defense.

Police probe the shooting of the father and his infant son on the streets of Miami -- while the child survives, the father does not. English

One murder in broad daylight. Then another brutal attack almost exactly a year later. Police discovered a chilling connection between the victims, and many feared they had a serial killer on their hands. It was a race to connect the dots.

Vern Holbrook, the owner of a thriving estate company and beloved patriarch of a family, fails to show up at a meeting with his daughter-in-law and she grows concerned.

It was a violent and bizarre crime scene: #1 scrawled next to the lifeless body. The victim’s boyfriend had an alibi and the case went cold. Then, a DNA hit. But investigators couldn’t figure out the link between two people separated by 1,500 miles.

She was a wealthy, beloved socialite in the suburbs of New York City and an unlikely target for such a brutal murder. Police immediately zeroed in on the most likely suspect but solving this crime wouldn’t be easy or quick.

A woman is brutally murdered in her bed and her husband and son both immediately begin pointing fingers at each other after two rapid-fire calls are made to 911.

It was a custody battle, then baby Savanna was gone. The mystery of her whereabouts spanned two decades. Solving it took investigators nearly 10,000 miles around the world, driven by a determined dad trying to learn what happened to his daughter.

Real estate developer Gary Triano lived large; his murder was a bold statement; there were whispers of a mob connection, an angry investor, or a mad ex, and the mystery took nearly two decades to unravel.

Lynne Knight was a vibrant young nurse whose love of adventure made her stand out. Then, she was murdered. The savage crime haunted detectives for decades. The killer thought his secret was safe, until new investigators put fresh eyes on the case.

A chance meeting at a nightclub ends in murder; those involved in the gruesome crime thought they had buried the secrets of the past, but a relentless team of investigators will stop at nothing to unearth the truth.

Detective identify multiple suspects after a mother disappears, but they later face scrutiny from the woman's family due to the lack of answers they have provided.

Nick popped the question and Kristy said yes; they were busy planning their future when she found him dead in the bedroom; police questioned spurned lovers and office enemies before a tip from Nick's brother helped reveal the true killer.

Michelle Mockbee met her husband at the warehouse where they both worked; it was also where she met an untimely death; security footage led police to a suspect, but when it appeared justice had been served, a scandal turned the case upside down.

Angila Wilder was a busy mom, working to make her dream of becoming a nurse come true, then she was murdered; at first, investigators thought it looked like an open-and-shut case, but it would take an elaborate sting to uncover the truth.

Emma Walker was a fun-loving teen with her whole life ahead of her, then she was shot dead in her bed; detectives were facing a tough investigation.

When a recently divorced mom vanished, the search to find her was halted by a hurricane; as the floodwaters receded, investigators discovered the same deadly storm that slowed their investigation was about to flush out her killer.

Private First Class Karlyn Ramirez had a job she loved and a baby she adored. Then, she was shot dead in her home. Her killer thought he'd covered his tracks, but investigators uncovered a plot so devious, it defied imagination.

Cassy Farrington had two beautiful kids, a doting boyfriend and an exciting new job. Then she was found dead in her bathtub. Cassy's parents were determined to solve the mystery, stopping at nothing until they found justice.

A woman is found strangled after a powerful storm; police focus on a fiancé and a co-worker with a crush until they hear from a flood of women who've had chilling encounters with a stranger; It seemed a predator was stalking the women of Austin.

It was supposed to be happy weekend at their cabin. They went on a hike, pausing at a perfect spot for pictures. But something went wrong, and the frigid currents below took a life. Investigators wondered if they also swept away a secret.

In a case made for Hollywood, they were camera ready. Erik and Lyle Menendez were convicted of murdering their own parents more than two decades ago. Now hear chilling new details about the gruesome double slaying from the brothers themselves.

Diane Marcell walked into her home and found her daughter covered in blood. Then, she felt pure terror. The attacker said she was next. A single drop of blood was the key to finding him, but it took nearly a decade to unlock its secrets.

Single mom Sarah Goode went missing after a night out with friends; her family was determined to find her; police turned up four possible suspects and two tantalizing clues; the killer left a signature.

After Erin Corwin told her husband she was scouting hiking trails in Joshua Tree National Park, she suddenly vanished -- police quickly uncovered a steamy love triangle and a mystery with a deep pool of potential suspects.

He was a wealthy doctor with a perfect life and the perfect wife; then, he found her dead on Valentine's Day; she was beloved but did have enemies; investigators followed a bloody trail of evidence, leading to a big courtroom twist.

When Ricky Cowles and his girlfriend moved in together, her best friends moved in too; at first, it was like a big sleep over, then Rickie was found shot dead; his killer would let a secret slip, but turns out, he was keeping more than one.

Rosie and Yazeed Essa seemed to have an ideal life, two beautiful children, no financial worries and a loving extended family; a fatal fender bender shattered it all; investigators discovered her marriage was full of secrets.

He was a drummer who never missed a beat, then vanished; his family and the police were determined to work together; it was a race against the clock to find him.

When a college student vanishes, investigators launch a massive manhunt and quickly discover she is not the kidnapper's first victim; police are inundated with leads before an anonymous tipster divulges a secret that helps crack the case.

Amber Dubois disappeared in the San Diego area, and the search turned up nothing. Then, a year later, Chelsea King disappeared in a neighboring town. Investigators were determined to find out if the two cases were connected. Will these girls be found together and alive?

Young mom Brigida Uto loved running and chasing her toddler around, and when her health suddenly failed, doctors had to unravel a medical mystery to save her life; then, the FBI joined the confounding case and uncovered a sinister plot.

Madison Holton’s parents had reached their wit’s end. They called a family meeting to confront their rebellious teen. When it was done, two of them were dead and police were left with a puzzling mystery.

Investigators didn’t know if Kathy Heckel was a missing person or murder victim. The case grew cold until, decades later, a new detective dusted off the old files. They couldn’t catch the elusive suspect then, but he hoped to solve the mystery now.

Twenty-five-year-old Christy Mirack always wanted to be a teacher. She was just getting her start when she was murdered. It took police twenty-five years to find her killer. Turns out, he was hiding in plain sight the whole time.

Financial advisor Pam Zimmerman was everything to her children. Then she was gone, shot dead in her office. Detectives focused on three men in Pam’s life, wondering if the motive was professional or personal.

Randy Baker battled addiction as a young man, then found his calling as a counselor later in life. When Randy was found dead, investigators wondered if someone from his past put an end to his future, or if trouble was closer to home.

Michella and Jenni were from the same town and both loved riding bikes. They did not know each other but were forever connected by their unsolved murders. Someone else their age grew up to become a detective. Now, she was trying to solve their cases.

As a love triangle between a podiatrist, his estranged wife and his new girlfriend took shape, a luxury car salesman got a surprising visit from a beautiful former customer. She was not looking to buy a car. She wanted someone murdered.

After following the case for more than fifteen years, Dateline delivers a comprehensive report with rarely seen interrogation video, new insight from prosecutors, and surprising details from the other woman, Amber Frey, who helped uncover the truth.

Bob McClancy was a beloved detective. When his death was ruled a suicide, loved ones were suspicious. United by grief, his widow and good friend found themselves falling in love. Then Bob’s son started asking questions and uncovered a secret.

When a handsome veterinarian is found dead in a small Montana town, it launches a mystery that remains unsolved for years. After nearly two decades, investigators think they can solve it, but know convincing a jury will be no easy task.

Lisa Techel was newly married and pregnant when a shotgun blast ended everything. Police questioned the neighbour, who had a gun and a grudge. There were whispers that her husband had a secret. The case tested three juries then took one final twist.

Dave Kroupa and Cari Farver began a casual fling. Then Cari disappeared, but Dave was getting disturbing texts from her. It was a mystery that linked three women with one man in a case of jealousy, secret identity and murder.

This wasn't just any Halloween party. It was the big event of the season. Chelsea had her costume ready, sewed the leaves on herself. She was dressed as Poison Ivy, but never imagined she would encounter real evil that night.

Publicly they were a prominent family highly respected for their success. But privately a jury heard something else. It was case that pitted father against son, husband against wife and brother against brother.

On a warm August day, Ray Kotomski quenched his thirst with a cool drink. Kotomski was dead within hours. Investigators had to figure out what killed the happily retired Pennsylvania man, and also whether this was even a crime at all.

They were a married couple meeting for a secret Valentine's Day rendezvous. The secluded spot became a crime scene when Richard Schoeck was found shot dead there. Turns out, the rendezvous wasn't the only secret in their lives.

Jessie Blodgett was a budding musician and actress; the morning after a performance, Jessie's mother found her dead.

Tara Fitzgerald loved hanging out with friends. Like a lot of teens, she kept a few secrets from her folks. One turned out to be deadly. Detectives uncovered a disturbing trend endangering teens in their community and across the nation.

An Army captain, back from serving abroad, is found dead in her El Paso home. The news stuns her tight-knit military community. Her husband has an alibi, but what about her family and friends? Andrea Canning reports on a case with many twists and turns.

Jason and Julie Harper live the American dream in a picture-perfect home with three beautiful children, until the morning comes when Jason is found murdered; police are quick to discover who did it but proving why is much harder.

Carrie Olson had a heart of gold and a new man in her life. Then, she went missing. Loved ones launched a desperate search for answers, but investigators wondered if one of them was hiding a dark secret.

Sabine Buehler moves to an island off the coast of Florida for her own slice of paradise. When she vanishes, friends know she hasn't left on her own. Finding out what happened to her leads police down a long and winding path in the sand.

It takes a special eye to spot the thing that's out of place at a crime scene; in this case, that thing looks so insignificant, no one even knows what it is or what it means; it takes a team of determined investigators almost two decades to find out.

A young woman was found in the middle of the road, nearly dead. With little evidence to go on, investigators hoped to find out what happened from the victim herself. The problem was, she couldn't remember.

Some who knew the couple in this story saw two people in love. Others saw a marriage in trouble. They loved hunting and were both excellent shots. So good, they rarely missed, whatever the target.

A young mother was killed and her family hoped for quick justice; nearly three decades later, small traces of DNA evidence reveal an ugly truth.

When a young, physically fit woman died suddenly, her friends and family were told it was a freak accident in a gym; equipment can malfunction, but so can relationships.

Hundreds of Americans die every year from accidental carbon monoxide poisoning; according to police in Ohio, one of those deaths was no accident; if anyone knew how to use a deadly gas, it was their prime suspect.

Mike Williams goes out duck hunting before dawn and never returns; authorities declare his death an accidental drowning, but Mike's mother believes he was murdered; after a dramatic secret comes to light, police believe she may be right.

Heidi Allen was working at a store to earn cash for college and was last seen there when she vanished. A man was convicted of murdering her, but years later someone else confessed to friends that he did it, blowing the old case wide open.

Corey Parker had plenty of admirers, but maybe one of them liked her too much. Her murder jolted a sleepy seaside community with the chilling realization that a killer was walking among them.

Fences make good neighbors, but this one triggered a deadly fight. Only two men were there and the man who shot first told investigators his story. However, the crime scene was telling another story.

She yearned to make it in Hollywood. Instead, Brittany Tavar made headlines when she vanished. Investigators had plenty of leads – a handsome boarder, the friend turned enemy, or they wondered if the free spirit could have left on her own.

Realtor Lindsay Buziak thought she'd landed dream clients when a mystery couple said they wanted to buy a million-dollar home. What seemed like a golden opportunity turned deadly when Lindsay was murdered in the ritzy home.

They were a couple who seemed made for each other. Seemona Sumasar thought she had met Mr. Right, but her instincts proved wrong. Nothing was as it seemed.

In a suburb of Toronto, a family lives in fear as one relative after another is found dead over the years in the same house.

It was a mystery from day one: A young father’s life cut short. Matt Podolak's death was puzzling. The word poison kept coming up. Matt’s brother embarks on a long quest for the truth.

Uncovered pages from John Hinckley Jr.’s diary are revealed. Hinckley began writing after he was arrested for trying to assassinate President Ronald Reagan.

Two Tulsa brothers fight for more than 20 years to prove their innocence, after they were wrongfully convicted for separate murders;

Lester Holt spends two nights locked up and embedded inside the largest maximum-security prison in America.

Before the Menendez brothers, the Bobbitts or even O.J., Pamela Smart was television’s first true-crime fascination. Smart’s husband was found murdered and when police began to investigate, they discovered that she was keeping a big secret.

Rod Covlin calls 911 after his young daughter finds his estranged wife unconscious in the bathtub. Soon after her mysterious death, family members would come to suspect what happened was no accident.

When college student MacKenzie Lueck vanished from a park in Salt Lake City, her friends were dedicated to finding answers. The search made national headlines and the investigation revealed a secret that stunned even her closest friends.

Police are perplexed when they find the body of a young woman but are unable identify her; with the help of amateur investigators and new DNA technology, a dogged investigator finds her killer and her identity.

Two tenacious sisters are determined to fulfill a promise to investigate the mystery surrounding their mother's death.

When a model and up-and-coming YouTube celebrity is found dead in their pool, police question her husband see if he can provide any answers.

This is the behind-the-scenes story of Rebecca Musser vs. Warren Jeffs, one of the FBI’s most notorious fugitives. Rebecca opens up about life in the Fundamentalist Church of Jesus Christ of Latter-Day Saints and why she decided to leave.

Gianni Versace’s longtime partner Antonio D’Amico speaks about the murder of the fashion icon. Versace’s murder came amid a months-long manhunt for Andrew Cunanan, who was accused of committing four other murders throughout the US in 1997.

Linda Watson is a single mom raising a beautiful daughter when she disappears; then, suddenly, Linda's mom goes missing too, along with another friend; police are convinced the three cases are connected, but unraveling the mystery takes years.

She was an A-lister in a town famous for glitzy ski resorts and celebrities; when socialite Nancy Phister was murdered, the news reverberated around Aspen; Nancy had a long list of friends, but she also had enemies.

Friends think something isn't right after the mysterious disappearance of a Colorado rancher and spend years fighting for answers.

A high-society hustler with a flair for spinning lies, the con man known as Clark Rockefeller is accused of murder; to solve the mystery, cold-case detectives begin to retrace his steps along a decades-old trail of deceit.

Two years after the disappearance of his wife, Josh Powell kills his two sons and himself. Watch Josh's last in-depth TV interview. Plus, a 911 dispatcher discusses the emergency call placed by a social worker.

She was a small-town girl from rural Wisconsin; he was a Chicago superstar, a hometown hero with the legendary Bears; together, they were expecting their first child, but no one was expecting their tale to end in the deadly way that it did.

A young woman is abducted in Ecuador, and as her family and investigators race to save her, she plots to save herself; her daring plan involves a little something hidden at the bottom of her bag, but time is running out.

A small-town girl moves to Las Vegas, where she finds a new career and new love; soon after, however, she vanishes, and within days, police find her body; finding who killed her will be a tougher mystery to crack.

It is common for long-haul truck driver Lloyd Ford to be gone for stretches, and when he disappears, it doesn't raise many flags; at least two people know where he is, and they guard the secret for 27 years, but the truth is about to be revealed.

Brooke Wilberger was 19 when she was kidnapped; her family begged for her return, but months passed before police got their first break, a similar attack more than 1,000 miles away.

The murder of a young businessman in the Old San Juan district of Puerto Rico marks the start of a 15-year-long hunt to find the killer.

When hikers find a 21-year-old UCLA student's body in a Los Angeles-area train tunnel, detectives wonder if his interest in an alternative religion is connected to his murder.

Details expose how the Gucci family was undone by jealousy, backstabbing and, ultimately, an act of murder; insiders close to the fashion empire speak out about the murder of a prominent family member.

A Philadelphia murder reveals decades of misconduct in the city's criminal justice system and raises questions about whether police caught the right person.

When Courtney Copeland is shot and killed, his mother investigates whether police detectives did enough to try to solve the case.

Keith Morrison reports on a dramatic undercover operation in Palm Beach, FL, to save a wife and mother who has no idea she is in danger.

A district attorney in Pennsylvania went missing in 2005 under mysterious circumstances seven years after he investigated sex-abuse allegations made against Penn State football coach Jerry Sandusky.

Four years after a 28-year-old dies after hosting a New Year's Eve party, a jury must decide if it was suicide or murder.

Friends of accused murderer Robert Durst talk about his arrest in New Orleans and his previous whereabouts over 30 years.

When a woman returns two days after being reported abducted, authorities believe it's a hoax until a similar crime forces them to take another look.

New interviews with insiders reveal how career criminal Charles Manson convinced his followers to kill innocent victims and deliver him the fame he craved.

Rapper Meek Mill discusses controversies surrounding the criminal justice system, the parole system, wrongful convictions, challenges faced by law enforcement, alleged police abuse, and other topics.

An investigation of abuse allegations against one of the owners of the religious reform school Circle of Hope.

Oscar Pistorius shoots and kills his girlfriend just eight months after competing in the London Olympics, telling police that he believed she was an intruder and that he was acting in self-defense.

A man is shot and killed while picking up his daughter for a court-ordered visit.

An in-depth look at the journalists who exposed the dangers of cult leader Rev. Jim Jones.

A car belonging to a missing man erupts in a blaze, leading to clues regarding his whereabouts.

It was called the trial of the century and, decades after the polarizing case, questions remain. Hear answers and insights through interviews done over the years, rare footage and revealing conversations with key players who offer new details.

A dancer is murdered in her Virginia home; after interviewing a series of suspects, detectives realize the case is much more complicated than previously thought.

A San Diego mother suddenly vanishes in 2014; nearly two years later, her body is found in San Diego Bay, but medical examiners say she has only been dead for a month or two.

When 18-year-old Anjelica 'AJ' Hadsell disappears, the investigation into her inner circle reveals a sinister betrayal.

When Nichole Payne and her son Taylor are found dead in their home, investigators wonder if this is a murder-suicide or if someone wants it to look that way. The mystery takes nearly a decade to unravel.

When 19-year-old Anton Black dies while being taken into police custody, the community seeks justice. A yearlong Dateline investigation looks at missed warning signs and the officer at the center of the case.

The investigation into a newlywed's murder starts with a widow and ends with a possible serial killer.

Detectives in Portland, OR, discover a puzzling connection between the 2018 murder of chef Dan Brophy and a blog post written years earlier titled How to Murder Your Husband.

A 40-year-old Minnesota wife and mother, Janet 'Jan' Kruse, is shot to death in her bed while her husband Chris and teenage daughter Bailey are home, leaving investigators to wonder who would want her dead.

Flight instructor Kelsey Berreth vanishes after she was last seen grocery shopping with her daughter on Thanksgiving in Woodland Park, CO; the case makes national headlines, but the secret behind Kelsey's disappearance is lurking much closer to home.

College student Jesse Valencia is found murdered in a residential neighborhood in Columbia, MO; the police search for the truth, and they are stunned to learn that one of their own might be involved.

The mystery of a surgeon's whereabouts remains unanswered for five years after he disappears while on vacation with his wife, leaving behind financial ruin and mounting malpractice suits.

Eleven years after Waterbury, CT mother Donna Palomba is raped in her home while her children slept in 1993, investigators finally track down her attacker. Donna speaks out about the case, including her fight to keep her assailant from walking free.

In Stephenville, TX, in 1987, Susan Woods doesn't show up for work for 2 days; she is discovered by her father dead at home in her bathtub. As police search for answers, they find a trail of victims - men associated with Susan, including her estranged husband living in Indianapolis. But the case wasn't solved for almost 2 decades.

A Blairsville, PA man, 39-year-old dentist and father Dr. John Yelenic, is convinced his messy divorce put a target on his back. When he's found stabbed to death in 2006, his friends and family realize he was right all along in predicting his own gruesome murder.

Kathleen Schroll makes a phone call right before her death where she identifies her killer, which leads to an arrest; two trials and 12 years later, authorities begin to wonder who was really the victim.

After trumpet player Scott Sessions fails to show up for a scheduled gig, his family learns his body was abandoned in the remote Colorado Rockies; as the investigation narrows in on two suspects, a second murder catches police by surprise.

Firefighters make a grisly discovery of the body of 39-year-old wife and mother Carmella Knight after responding to a house fire outside Toronto. An elaborate undercover sting reveals a devious murder-for-hire plot.

A woman is found executed on a rural road 25 miles from downtown Laredo.

When young mother and paramedic Annamarie Cochrane Rintala is found dead at the bottom of her basement stairs, it takes four trials and 13 years before justice is served.

When Idaho police retrace the final hours of 16-year-old Cassie Jo Stoddart in 2006, they uncover evidence including a homemade horror film that points to her killers. Keith Morrison reports.

After Tahereh Ghassemi disappears from the Louisiana home she shares with her adult son, detectives discover that she'd recently come into a great deal of money. The investigation reveals an astonishing plot with international implications.

A month after Mollie Tibbetts' disappearance in Iowa, investigators discover surveillance video that captured a blurred image of Mollie jogging while being followed by a mysterious black car.

When a U.S. Air Force Airman is shot multiple times inside his garage, a trail of clues leads Las Vegas detectives to a secret love affair and a murderous plan.

A mother searches for answers in the unsolved murder of her 14-year-old daughter until new DNA technology changes everything.

A nurse is gunned down in her home and detectives believe they have a suspect. As they delve deeper into the investigation, new information leads them down a completely different path.

Kelsie Schelling disappears one night after leaving work, leading family and investigators on a four-year hunt to find the pregnant 21-year-old; cell phone records reveal what happened to Kelsie.

Police bodycams capture officers rushing to Amy Allan's house after her husband called 911 to claim she'd taken her own life; investigators delve into forensic evidence and mobile data to solve the crime.

Private Investigator and former police officer Taylor Wright vanishes, but detectives think there is more to the story after her girlfriend receives strange text messages from Taylor's phone.

Detectives in Washington, D.C., discover a puzzling connection between two women who disappeared two decades apart. An investigation reveals a sinister secret hidden along one of the busiest stretches of interstate in the country.

27-year-old Egypt Covington is found murdered in her home. Investigators in Michigan quickly identify a person of interest, but years pass without an arrest.

A family begins a relentless pursuit of justice after the death of Nevada attorney Susan Winters is ruled a suicide; Susan's parents open up about the 7-year case and their efforts to push back against the criminal justice system.

After the cause of the death of Stacy Feldman in her Denver home is ruled as undetermined, friends and family join forces to piece together what happened. Insiders close to the case speak out about the seven-year battle for justice.

After Florida teacher Denise Hallowell is found murdered in her home, investigators examine her family's tumultuous past in their desperate search for a killer.

After New Jersey mother Michelle Lodzinski reports that her 5-year-old son has vanished from a carnival, detectives embark on a decades-long investigation until a family member identifies a key piece of evidence pointing to a potential suspect.

A teenager's life is turned upside down by a shocking discovery is what seems like a fatal accident reveals itself to be something much more disturbing.

When high school student Megan Nichols vanishes from her Illinois home, her mother finds a note saying that she ran away. A grisly discovery made three years later changes the course of the investigation.

A small Ohio town is left in shock after a local coal miner is found fatally shot in his basement. As investigators dig into his personal life, a secret affair reveals a surprising suspect.

An investigation into the poisoning of Wisconsin mother Julie Jenson takes a surprising turn when detectives learn that she wrote a letter days before her death pointing to a possible suspect.

After police discover the burned body of a missing Miami man at the edge of the Florida Everglades, the wife of a local supermarket mogul comes forward to reveal a shocking secret and possible lead.

While responding to a house fire in New Jersey, firefighters discover the burned remains of the homeowner in the basement. New interviews and legal developments about the latest twists and turns in the case.

Lead detectives break their silence on the investigation into once-prominent South Carolina attorney Alex Murdaugh.

When a pediatric dentist is found dead, police uncover a complex plot and their suspect leads investigators on an international manhunt. The lead detective speaks out for the first time.

A devoted mother is found shot to death in her minivan. The case stays cold until old memories resurface and new revelations come to light, dividing her Florida family.

When former Arkansas State Senator Linda Collins is found fatally stabbed outside her home, detectives investigate if her murder is connected to her political career or her personal life; the victim's children speak out about the case.

After a plastic surgeon and local musician is murdered in his Asheville, N.C., home, investigators uncover a trail of clues pointing to an unlikely killer. New details emerge from exclusive TV interviews with insiders close to the case.

The investigation into a deadly home invasion involving a local business owner takes a turn when an unlikely witness comes forward; new details emerge from exclusive interviews and never-before-seen police interviews.

The murders of two young women near a Phoenix canal remain unsolved for more than 20 years until a team of cold case detectives take on the case and investigate a man known as the Zombie Hunter.

The missing-persons case of 12-year-old Jonelle Matthews in Colorado remains a mystery for more than three decades until detectives narrow in on a suspect whose bizarre behavior after her disappearance hints at something much more sinister.

A group of women help bring down a smooth-talking serial predator turned killer who lured young women with promises of fame and fortune.

A beloved Staten Island teacher is found dead in the home she shared with her husband; an unknown number in her cell phone leads investigators to ultimately unearth her killer.

When a young pregnant mother goes missing in Virginia, her family embarks on a search, but the case goes cold. Years later, investigators find a woman who may hold the key to solving the case.

A young father's murder at work leads investigators to deep secrets about sex, friendship, religion and family.

Nearly 40 years after young wife and mother Cathy Krauseneck is found murdered with an axe in her upstate New York home, a new team of investigators joins the cold case to uncover the killer.