A man is found strangled and burned in his San Antonio apartment and the killer thinks he has destroyed all the evidence.

When two men appear to die of heart disease six years apart, police notice they have one thing in common, they were each married to the same woman.

Casino security cameras offer the final images of a woman, just before she vanishes without a trace; can these grainy images lead police to her killer?

Two bodies are discovered, shot to death in their car; the car windows are broken, but there's no sign of shattered glass.

Key suspect has a solid alibi in the murder of a war veteran; but police get a lead by finding a new suspect with a sweet tooth.

Addiction leads prisoners to serious crime to fuel their habits.

Deputies respond to rising tensions in a female housing unit; a popular rapper, whose ups and downs have been told in the Oakland media, now faces serious charges; a grandmother convicted of a mortgage scam finds her place in the inmate hierarchy.

On the 20th anniversary of the case that captivated and divided the country, new insights are given into the murders and trial, including a witness who saw Simpson the night of the murders but never testified.

On the 20th anniversary of the case that captivated and divided the country, new insights are given into the murders and trial, including a witness who saw Simpson the night of the murders but never testified.

A single dad and former firefighter is found dead in his garage; police use a neighbor's security footage to uncover a deadly secret.

With a hurricane bearing down on Palm Beach, Fla., police race to solve the murders of a mother and daughter before all the evidence is washed away.

The tranquility of the Florida Keys is shattered when a resident is murdered in his home, but as police scour the island for a killer, a bizarre trail leads them to a series of shocking crimes.

When a patrol officer discovers a dead body in the back of a taxi, detectives must rely on a trail of digital breadcrumbs and a mysterious passenger to track the killer.

When a Philly radio personality is killed in her lavish Shore home, the years-long investigation reveals an undercover informant, an intricate murder-for-hire plot, and a vast trafficking conspiracy.

Jack Jessee was a family man who didn't seem to have an enemy in the world, up until the night he was killed; the case goes cold but a relentless detective is determined to catch Jack's killer.

Larry McNabney has a thriving career and a wife he adores, but then vanishes; at the center of the twisted mystery, three lives tangle together in a love triangle, including one who hides a secret identity.

When Karen Pannell is found stabbed to death, a message scrawled in blood seems like a beacon that could lead detectives to her killer; it takes a dogged forensic specialist with a keen eye to unravel the mystery.

It was a mystery that stumped investigators for years; a college student disappears after a night out clubbing; her mother thought she was at a sleepover with friends and it takes 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 faces 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; the investigation centers on two men and a mysterious black bag that seems 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.

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.

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.

Twenty-seven-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 seven-year case and their efforts to push back against the criminal justice system.

A woman walks into her home to find her daughter covered in blood; a single drop of blood is the key to finding the attacker.

A woman walks into her home to find her daughter covered in blood; a single drop of blood is the key to finding the attacker.

A man disappears after a duck hunting trip in Florida on his sixth wedding anniversary and is later found to have been murdered.

In Deltona, Fla., a limo driver disappears amid rumors that he's hiding from gambling debts; detectives are forced to search for body parts all over central Florida as they investigate a suspect's horrifying story about why the man vanished.

When a University of Florida student vanishes, police can't ignore the possibility that he disappeared into the alligator-infested swamps around Gainesville; but they discover he may have fallen prey to a deadly danger closer to home.

When a prominent Atlanta judge is shot dead in her upscale home, detectives must figure out if the killing was payback from any criminals she had put behind bars, or if someone close had a personal score to settle.

A prestigious Atlanta college is stunned when one of its own students is horrifically tortured and murdered off campus; investigators discover that greed may have led to the promising athlete's tragic end.

Keith Morrison reflects on the case of a Chicago woman from a big family who went missing.

Josh Mankiewicz recalls the story of a detective who makes it her mission to find dozens of women who vanished on the streets of Albuquerque, N.M.

Andrea Canning recalls the case of a popular kindergarten teacher who goes missing after shedding hundreds of pounds, and investigators find a link between her weight loss and her disappearance.

Dennis Murphy looks back at the story of a determined young woman whose decadeslong search for answers in her mother's mysterious death leads to a dramatic courtroom decision.

Investigators track down a suspect in the disappearance of a celebrity dog trainer; Keith Morrison reflects on the fractured love story at the center of the mystery.

While North Carolina detectives hunt for answers in the murder of 28-year-old James Chambers, his mother searched for his remains; Andrea Canning reflects on the family's unrelenting quest to find justice for James.

A wife and mother is taken into an unmarked car by a blond woman on a Monday morning, but police are unable to find any record of her arrest; for Josh Mankiewicz, this case reset the bar for brazen and he revisits the reasons why.

Keith Morrison reflects on a case; an Idaho man is sentenced to life after falsely confessing to his friend's murder, but after the true culprit is caught, a chilling twist unfolds.

Josh Mankiewicz re-examines the kidnapping and murder of 17-year-old Carla Walker following a Valentine's Day dance in Fort Worth, Texas; Cutting-edge DNA technology and diligent police work lead detectives to her killer.

A man charged with murder denies committing it; the courtroom strategy provides a twist.

A tight-knit Long Island family go to extraordinary lengths to find their missing sister.

A tight-knit Long Island family go to extraordinary lengths to find their missing sister.

When a young woman is found dead near a soccer field in Indiana, detectives try to piece together a puzzle that leads them to an unexpected suspect.

When a college sorority sister is found brutally murdered on the day of a Texas football game in 1984, everyone is left to wonder who could have killed this raving beauty.

Three friends descend on the French Quarter in 2009 looking for a fun night out and it ends up being their last.

A hospital staff member is found dead inside the hospital after going missing on a night shift.

When devoted young mother Sara Summer vanishes from a small Tennessee town, the investigation into her life exposes a world of romance, lies and a fatal betrayal at the hands of a man she trusted.

A newly single mother of two vanishes after going on a date with an old high school friend she connected with on Facebook; investigators race against the clock to reveal the true identity of the mystery man.

A bomb rocks South Chicago killing Mark Toney, investigators dig beneath the rubble to expose a violent, seductive con game and a shockingly deceitful relationship.

Morgan Fox, a young mother, is shot dead outside her home in North Canton, Ohio; in the search for her killer, investigators discover a toxic workplace, a twisted obsession, and a killer relationship.

Desiree Sunford, a beloved middle school art teacher in Yakima, Wash., is found dead in her home from multiple gunshots; as detectives dig into her marriage, they uncover a world of jealousy, sex and liaisons.

Twenty-one-year-old art student Katelyn Markham vanishes just weeks before college graduation; the investigation unfolds over 13 years, uncovering lies, rage, and a betrayal that hits close to home.

Just months after a shooting nearly takes her life, a New Jersey woman is reported missing. Fearing her original attacker has returned to finish the job, investigators race to expose an elaborate murder plot and an obsessive killer.

A farmer is gunned down inside his Barron County, Wisconsin home in what appears to be a planned hit. As investigators search for answers, they turn to an unstable ex whose plot to kill shocks the rural community.

A respected family man is found shot to death in his upscale California home. As detectives race to find his killer, a startling confession exposes a web of lies, allegations of abuse, and a marriage pushed to its breaking point.

When a man is found shot to death on a suburban street, a wild investigation commences, featuring a high-speed car chase, dangerous gang members and a twisted murder plot that betrays family loyalties.

A home invasion turns deadly on Easter night; as Ohio authorities hunt for the assailant, they discover that the attack may not have been as random as first thought.

Wabash Valley Correctional Facility houses some of the highest security prisoners in the state; corrections staff investigate a potential escape plot and one inmate with a very familiar face tells their own story.

The killer of a corrections officer fights to be freed from 16 years of solitary confinement, and boyhood friends struggle to parent their kids from behind prison walls; but one, cut-off from visits with his son, is on a razor's edge.

A violent gang member asks to move back to general population, following six years in segregation; a brother and sister are charged with murdering a high school football star, two years after he was stabbed to death on an Oakland street corner.

A first time inmate says he must turn to violence to avoid becoming a victim, an accused rapist gets into more trouble in jail and what he does next has some questioning his motives.

When a beloved mom is murdered in her suburban Connecticut basement, and her husband is found zip-tied to a chair, detectives pursue a camo-clad intruder and a twisted trail of digital evidence that uncovers a diabolical plan, months in the making.

When a Philly radio personality is killed in her lavish Shore home, the years-long investigation reveals an undercover informant, an intricate murder-for-hire plot, and a vast trafficking conspiracy.

When a patrol officer discovers a dead body in the back of a taxi, detectives must rely on a trail of digital breadcrumbs and a mysterious passenger to track the killer.

The investigation into the disappearance of a Marine's 19-year-old wife reveals a secret love triangle and multiple suspects.

The investigation into the disappearance of a Marine's 19-year-old wife reveals a secret love triangle and multiple suspects.

A mother's death initially appears to be a suicide, but when investigators start to interview those closest to her, an evil plot emerges.

When a hard-charging boss in Arizona is shot to death, police uncover a complex web of bruised egos in his professional life and a trail of broken hearts in his personal life.

A Kentucky man is convicted of murdering his co-worker; the mystery is considered solved until a stunning disclosure years later turns the closed case upside down.

The parents of Kristin Smart speak out in an interview following the sentencing of their daughter's killer.

A week before a wealthy banker's divorce was set to reach a settlement, an ex-con says he was hired to murder someone in the family.

For the 100th case, the 2007 murder of a popular college student who was stabbed to death in her bed; help is needed from forensic pathologist, digital forensics expert and DNA lab to solve the case.

The Cold Justice team continues its investigation into the murder of a popular 18-year-old college student.

Kelly and Tonya investigate the mysterious disappearance of a mother who went missing after a Fourth of July celebration; an old tip on where her body might be buried takes a turn when cadaver dogs signal they've found something.

When the body of a young woman is found hidden in tall reeds in a quiet park near her home, fear grips the Queens neighborhood; after months of ceaseless investigation, a clue from the past leads NYPD detectives to an unexpected killer.

A mass shooting in Chelsea leaves one dead and three injured; the detective discovers this is the latest in a series of murders spanning multiple precincts; investigators find themselves plunged into the underground world of New York's bouncers.

When a Ukrainian immigrant goes missing in Brighton Beach, a team of law enforcement's best agents from the New York Police Department, U.S. Attorney's office and FBI team up to find out what happened.

When a patrol officer discovers a dead body in the back of a taxi, detectives must rely on a trail of digital breadcrumbs and a mysterious passenger to track the killer.

When a Philly radio personality is killed in her lavish Shore home, the years-long investigation reveals an undercover informant, an intricate murder-for-hire plot, and a vast trafficking conspiracy.

After a successful Korean-American business owner is killed during a home invasion, detectives believe his murder could be tied to a string of Philly crimes against businesses, until they uncover that the mastermind is someone much closer to home.

When a former cop discovers his wife shot to death, authorities believe it's suicide; but her family fights back, turning the Texas justice system upside down.

The execution of successful businesswoman and mother Makeva Jenkins sparks an intense investigation, but unveiling the masked gunman requires unmasking a litany of suspects in hopes of exposing a killer relationship.

After a successful Korean-American business owner is killed during a home invasion, detectives believe his murder could be tied to a string of Philly crimes against businesses, until they uncover that the mastermind is someone much closer to home.

When former NFL star Antonio Armstrong and his wife, Dawn, are murdered in their own bed, detectives uncover a stray bullet, threatening note and web of complicated family dynamics that ultimately unravel, revealing a dark betrayal.

A paroled killer linked to the disappearance of young women forces police into a desperate manhunt; this shocking case unfolds against a backdrop of unfortunate legal and parole decisions that set Kenneth McDuff loose to become a serial killer.

The ambush-style murder of a human rights activist confuses investigators; but when her boyfriend's brother is also gunned down, police uncover a plan to commit murders in the name of honor.

A son uncovers a dark family conspiracy when he questions his mother following a man's apparent suicide.

A son uncovers a dark family conspiracy when he questions his mother following a man's apparent suicide.

A murder case considered closed by North Dakota detectives is suddenly reopened when a confidential informant comes forward with a tip about an unlikely suspect.

A popular high school student is found murdered in her bed; two students help police solve the case.

A mother of two who vanishes during a storm turns out to be a victim of something sinister.

Jail stays are getting longer and many inmates have very little, leading to violence erupting over any perceived slight, especially if it involves food.

A group of prisoners are entrusted with potential weapons, but for the benefit of others; one of them hopes this assignment will result in a life-long bond; back at the jail, an inmate brawl leaves several officers injured.

California police receive a bizarre 911 call from an attorney who informs them of a death but won't share more details; an eerie feeling of déjà vu covers the investigation when detectives learn the details of a 30-year-old case in the same home.

After the bloody slaying of two men in rural South Carolina, a witness comes forward with information implicating her own family, leaving police to uncover if blood really is thicker than water.

When a local EMT dies in a suspicious house fire in Mississippi, investigators work for two years to expose the mastermind behind her death and uncover a greedy scheme from an unlikely source.

When a renowned Missouri snake breeder is discovered in a pool of blood, investigators believe his death was caused by one of his snakes; however, shocking evidence is found on scene, launching a homicide investigation that unveils a sinister plot.

When a family member ends up dead, detectives wonder if a money-hungry couple committed the crime or if they've been set up.

Two young lovers come up with a murderous revenge plot that will have multiple victims, but a few moments of negligence could turn their entire plan upside down.

Two teen runaways become ensnared in a homicide investigation when someone who disapproved of their relationship is discovered murdered.

The discovery of a dead body casts suspicion on an unlikely high school romance.

When a beloved mom is murdered in her suburban Connecticut basement, and her husband is found zip-tied to a chair, detectives pursue a camo-clad intruder and a twisted trail of digital evidence that uncovers a diabolical plan, months in the making.

A young woman vanishes from small-town Oregon after heading to a Halloween party, leaving her family devastated and detectives hitting dead ends. Years later, new evidence from an unlikely source reveals the gruesome plan to silence a vulnerable victim.

A missing family man is found murdered in his car near his home in New York. When evidence of a secret affair is exposed, detectives unravel a chilling conspiracy orchestrated by individuals close to him and a mastermind driven by greed.

Just months after a shooting nearly takes her life, a New Jersey woman is reported missing. Fearing her original attacker has returned to finish the job, investigators race to expose an elaborate murder plot and an obsessive killer.

A young woman vanishes from small-town Oregon after heading to a Halloween party, leaving her family devastated and detectives hitting dead ends. Years later, new evidence from an unlikely source reveals the gruesome plan to silence a vulnerable victim.

After two best friends are reported missing, Texas and Minnesota police team up to bring a suspected serial killer to justice; an accomplice shares her side of the story from behind bars, revealing chilling details of the crime.

A North Dakota community is rocked after a beloved mother is found stabbed to death in her home.As police look to those closest to her for answers, an informant comes forward and exposes a dangerous couple's vengeful plot.

When authorities respond to a car fire in rural Michigan, they find a charred body discarded nearby; as the investigation unfolds, the victim's phone records point to a vicious plot stemming from a dangerous infatuation.

Just months before his retirement, a missing trucker's body is found in a remote creek; as detectives run out of leads, a seemingly minute detail breathes new life into the investigation revealing two lovers with a nefarious plot.

When a young, handsome veterinarian is found dead in his home in Montana, the mystery remains unsolved for nearly two decades.

When a young, handsome veterinarian is found dead in his home in Montana, the mystery remains unsolved for nearly two decades.

The homicide of private first class soldier and young mother Karlyn Ramirez; a glimpse into the FBI's crime lab and an in-depth look at how multiple agencies uncovered a plot that spanned several states and prompted suspicions of espionage.

Three people are shot dead in a small Texas town, including two respected prosecutors; a clue that would connect the dots remains a mystery until an eagle-eyed investigator makes a stunning discovery.

When Detective Bill Clark investigates a disappearance, a trail of clues leads him to a young film director; Clark worries that the mystery was a hoax staged by a master storyteller; however, it turns out the script is much darker.

When a young mother, her daughter and a friend vanish after a visit with extended family, those close to the victims suspect foul play; without proof, the mystery deepens until a member of one of the feuding families makes a shocking admission.

A bar owner's body is discovered in a quarry pond; his killer remains a mystery to investigators for years while his increasingly divided family fears one of them must be the murderer.

The owner of an extreme-sport venture is found shot dead in his warehouse; police suspect a history of bad business may be to blame, until a contentious family past begins to cast doubt on his devoted son's innocence.

A mother is found savagely murdered in her upscale home, leaving a father and son to blame each other; their airtight alibis lead detectives to a murder plot involving an estranged sibling with nothing to lose.

The Colegroves are beloved in their small town, but when they're brutally murdered in what appears to be a targeted attack, a bitter dispute within their family is revealed, pitting the surviving brothers against each other.

Air Force veteran falls victim to unthinkable crime; search for the truth reveals a twisted tale of revenge and two suspects no one expected.

A loving husband and father goes missing, triggering a police investigation that uncovers an illicit romance fueled by deadly passion.

A good Samaritan falls victim to a brutal crime, leading police on a manhunt for a pair of killers fueled by envy and rage.

When an esteemed California pastor is found executed in an almond orchard, investigators turn to his complex love life for answers; allegations of blackmail are exposed, and a vindictive conspiracy is ultimately brought to light.

When a crimespree leaves five dead, South Carolina authorities kickstart a multi-state investigation to capture a desperate couple on the run; the case grows more complicated whenpolice are faced with conflicting accounts of the murders.

After a young mother is murdered in broad daylight, Texas authorities are on a hunt for a masked gunman; the ensuing investigation uncovers a bitter custody battle and a vicious plot born of obsession.

Crosby, Tenn., is shocked when a beloved father and pastor is found dead outside a ransacked house; police question if this was a robbery gone wrong until an unexpected witness comes forward to reveal the disturbing truth.

A welfare check confirms the worst when a woman is found brutally murdered on her couch; the ensuing investigation leads authorities from Oklahoma to Arkansas where conflicting stories of a crime motivated by greed and jealousy are uncovered.

When a missing man's bullet-riddled body is found off the side of a road, police must dig into his complicated past to uncover the truth; the case hits a standstill until information about the victim's car comes to light and reveals a toxic romance.

When a shocking crime is committed in broad daylight that leaves a young man dead on the street, the investigation uncovers a personal vendetta; in exclusive prison interviews, the killer couple each share their version of events.

A young woman vanishes from small-town Oregon after heading to a Halloween party, leaving her family devastated and detectives hitting dead ends. Years later, new evidence from an unlikely source reveals the gruesome plan to silence a vulnerable victim.

After a successful Korean-American business owner is killed during a home invasion, detectives believe his murder could be tied to a string of Philly crimes against businesses, until they uncover that the mastermind is someone much closer to home.

When the mysterious death of a 23-year-old mother in New Mexico goes unsolved, her family searches for answers.

When Ohio mother Heather Bogle goes missing, a detective identifies multiple suspects, until he himself comes under scrutiny for his investigation.

Two young girls in Washington are snatched in broad daylight while riding their bikes; the case goes unsolved for decades, until a new detective with a local connection to the story tries to solve the mystery.

Kathy Blair is found stabbed to death in her bedroom in Texas; the gruesome crime scene puzzles investigators until an unlikely clue that is captured in the darkness puts them on the trail of a depraved killer.

After the battered body of a young woman is found dumped at a landfill in Lubbock, Texas, detectives race to collect evidence hidden in acres of trash.

Marilyn McIntyre's gruesome murder goes unsolved for decades until a phone call resurrects the investigation; possible evidence may exist with the victim, even being buried 30 years underground.

When a woman finds her husband dead of an apparent suicide by poisoning, suspicious detectives must exhume the body of her first husband to unearth the truth.

Realtor to the stars Linda Stein is found bludgeoned to death in her apartment, but her larger-than-life personality meant Linda made enemies as well as admirers; with evidence from the crime scene, only painstaking sleuthing can identify her killer.

Two young women come to New York with big city dreams, but a chance encounter triggers a sequence of events that shatters those dreams forever; detectives must piece together a series of puzzling clues to bring the killers to justice.

When a patrol officer discovers a dead body in the back of a taxi, detectives must rely on a trail of digital breadcrumbs and a mysterious passenger to track the killer.

When a Philly radio personality is killed in her lavish Shore home, the years-long investigation reveals an undercover informant, an intricate murder-for-hire plot, and a vast trafficking conspiracy.

After a successful Korean-American business owner is killed during a home invasion, detectives believe his murder could be tied to a string of Philly crimes against businesses, until they uncover that the mastermind is someone much closer to home.

When a construction worker unearths human remains in the backyard of an old farmhouse, it sets off a baffling 15-year missing person's case and leaves detectives searching for long-buried secrets and overdue justice.

After a young woman vanishes from her neighborhood, North Carolina detectives are snared in a tangled web of deceit as they uncover a vicious love triangle; it's a race against time to find a killer and the evidence they need to solve a dark mystery.

When a young mother in Newport, Maine, goes missing, the case goes cold until another mom suddenly vanishes, sparking an investigation that leads to a deadly game of cat and mouse and grisly discoveries in a rustic backyard.

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.

A woman who appeared to have taken her own life told her sister that, if anything were to happen to her, there was a note in the china cabinet.

When an aspiring model turns up dead, police suspect her boyfriend. But must dig deeper for clues when he is cleared.

Tiny fibers and an asthma inhaler are the clues that lead officers to the killer of an off-duty policeman.

Investigators search the world of high rollers and offshore betting to solve the first triple homicide in Verona, Wisc.

Police search every apartment building in town when the body of a young girl found on an isolated farm holds a set of keys but no ID.

A man denies killing a pedestrian in hit-and-run, claiming he sold the car in question; authorities track down the car to find critical evidence.

Three years later, a second autopsy determines who's right when a medical examiner and detectives disagree on the cause of death.

Hit-and-run boating accident that kills a popular young man causes investigators to search for one boat out of thousands.

A woman is found dead on her bedroom floor, the only clue is a bloodstained sheet; breakthrough forensics enable police to identify the killer.

A young man is killed in a mysterious car crash, but the evidence at the scene lead investigators to believe it is not an accident; forensic science reveals what really happens, and the truth devastates three families.

A family of four is found dead inside a partially burned Indiana home; when investigators discover that two of the victims died from gunshot wounds, the race is on to determine whether the killer was a stranger or someone closer to home.

An elderly couple and their daughter are found beaten and stabbed in their home in central Texas; from potential family members to disgruntled employees, investigators consider many suspects and leads before finding answers in an unlikely place.

After a mother of two mysteriously vanishes, a young video gamer shares a tale with detectives that leads to the discovery of a diabolical plot.

After a mother of two mysteriously vanishes, a young video gamer shares a tale with detectives that leads to the discovery of a diabolical plot.

The father of an Alabama teenager calls the police after he returns home to find his son had thrown a party, leaving the place trashed; 11 minutes after the deputy leaves the house, another 911 call is placed reporting a shooting at the residence.

A planned romantic weekend turns into a nightmare for one young couple; a fight sends two women to segregation, and for one of the combatants, the isolation takes its toll.

One alleged gang leader is charged with assault shortly after his arrest and now his arch-rival is has been booked into the jail as well; an admitted identity thief and meth addict clings to hope for a better life.

A gang leader has his authority challenged by another inmate but questions arise over whether the challenger is who he says he is; in the women's wing, one inmate's personality divides her housing unit; before long, verbal altercations turn violent.

Inmates at Tennessee Prison For Women gain career skills by taking part in a cosmetology program.

It all began when a best selling author found his wife at the base of the stairs; the story makes headlines and has been covered for more than a decade; Michael Peterson answers questions.

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 convict is offered a deal as tempting as it is dangerous; he must go undercover in a psychiatric hospital to get information from a suspected serial killer in order to win his freedom, but there's no guarantee he'll get 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 is shot four times and left to die; investigators uncover a love story gone wrong and a villain with a dark secret; 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.

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.

When Dr. Teresa Sievers is found murdered in her kitchen, detectives struggle to find any leads until an unexpected tip changes everything; the woman who helped investigators speaks out.

For more than 30 years, "Dateline" has brought viewers investigations into some of biggest mysteries in America. This entry in the franchise takes a second look at some of the most mysterious cases of recent history. Hosted by Emmy-winning journalist Craig Melvin, the show explores the stories through firsthand accounts told by people who are close to the crime, including investigators who dedicated their time to the cases and family members who are still trying to confront the tragedies that befell their loved ones.

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.

The investigation into the death of a pregnant woman just months after she wed her high school sweetheart reveals secret lives and feuds.

The investigation into the death of a pregnant woman just months after she wed her high school sweetheart reveals secret lives and feuds.

Investigators didn't know if Kathy Heckel was a missing person or murder victim; decades later the case is reopened by a new detective.

When a pregnant St. Louis elementary school teacher is found shot to death in her apartment, an unusual gun silencer, missing money, and the victim's own meal plan help unlock a shocking and devious murder plan.

When a successful Palm Springs art dealer goes missing, the search leads detectives through a complex web of charismatic conmen, luxury shopping sprees, and one small piece of evidence that uncovers an elaborate murder plot.

When a beloved mom is murdered in her suburban Connecticut basement, and her husband is found zip-tied to a chair, detectives pursue a camo-clad intruder and a twisted trail of digital evidence that uncovers a diabolical plan, months in the making.

A young woman vanishes from small-town Oregon after heading to a Halloween party, leaving her family devastated and detectives hitting dead ends. Years later, new evidence from an unlikely source reveals the gruesome plan to silence a vulnerable victim.

A wife calls 911 to report her husband has been shot on a country road in Texas; what she tells investigators next makes this case memorable for Josh Mankiewicz.

Andrea Canning looks back on the case of a fitness tracker who helps detectives solve the mystery of a young woman's death in Wisconsin; Andrea confronts the killer in a tense interview.

When a star athlete at an Ivy League university goes on trial for murder, sparks fly in the courtroom; the trial ends with a stunning decision that Dennis Murphy will never forget, but the surprises in the case are just beginning.

A California woman's two former husbands are mysteriously murdered nearly 20 years apart; Keith Morrison reflects on the case that sent him halfway across the world on a hunt for answers.

A pink gun leads to an arrest when a complicated Texas love triangle ends in murder, but new evidence makes investigators rethink the case.

When Leslie Neulander dies after what seems like an accidental fall in the shower, her book club friends join forces to seek justice on her behalf; Andrea Canning reflects on some of the most determined women she's ever met.

An apparent home invasion in Minnesota leaves Heidi Firkus dead and her husband hospitalized; for Blayne Alexander, getting to know Heidi through loved ones was a privilege; for investigators, learning about Heidi helps solve the case.

After a mother is found murdered in her Virginia home, her son embarks on a 20-year quest for justice; for Josh Mankiewicz, this cold case was one of the strangest he's ever covered. He looks back at the reasons why.

After a woman is murdered, a secret is exposed but a mystery still looms; Andrea Canning re-examines the story she first covered years ago; new developments lead to an unexpected conclusion and an interview you have to see to believe.

When a small-town Alabama resident is murdered, rumors involving a local pastor begin to swirl.

A love triangle leads to years of stalking, property destruction, threats and murder.

A love triangle leads to years of stalking, property destruction, threats and murder.

The murder of a young schoolteacher in Pennsylvania goes unsolved for years, but investigators discover a new tool that may finally help unlock the murderer's identity.

A motocross champion and a model tie the knot in Las Vegas, never knowing their wedding vows will trigger a mysterious murder plot and a decades-long investigation.

A dental student rejects her boyfriend's marriage proposal, then dies under mysterious circumstances; when another victim dies under similar circumstances 14 years later, investigators must determine if the two cases are fatally intertwined.

When police investigate the murder of a Private Investigator the trail leads them to a wealthy woman who had affairs with both a father and his son.

A young mother's passionate affair with an old boyfriend ignites suspicion when someone close to both of them is murdered.

Questions are raised when a teenager awakens to discover her father, a popular high school drama teacher, stabbed to death in his bedroom.

A young teacher's assistant is raped and fatally shot in the middle of the night; her roommate, awakened by the noise, calls 911 and reports it as a suicide, beginning an intriguing mystery of motive, heartbreak and a tragic discovery.

The romance between two academy-bound high school sweethearts turns deadly when a youthful indiscretion leads to cold-blooded murder.

When a family falls victim to a devastating crime, the search for the killers lays bare a twisted romance and a motive no one can believe.

A loving couple is gunned down outside their home, setting in motion a cross-country investigation to track down an unlikely killer and a motive for revenge.

After a soldier is murdered on New Year's Eve, the quest for the truth reveals a deadly plot driven by temptation and obsession.

A beloved police officer's murder takes years for his brothers in blue to solve, ultimately revealing a conspiracy born out of lust and greed.

A shocking double murder and kidnapping springs police into action to stop a pair of deadly lovers before they can kill again; a surviving victim recounts the harrowing ordeal.

When the wife of an Army medic is murdered in her Hawaii home, the investigation reveals a sordid tale of secrets, lies and a twisted romance that captured headlines across the country.

The disappearance of a well-respected businessman leads to an investigation that exposes a secret romance fueled by lust and greed.