Philadelphia police officers find four adults locked in a filthy basement dungeon as the investigation leads detectives across four states, resulting in multiple felony arrests; all evidence points to a single ringleader behind a deadly scheme.

Survivors break their silence as Jessi exposes Hildebrandt's cult-like control; Ruby's journals confirm the emotional and physical abuse of her children; with evidence mounting, the court holds the women accountable and delivers long-awaited justice.

Philadelphia police officers find four adults locked in a filthy basement dungeon as the investigation leads detectives across four states, resulting in multiple felony arrests; all evidence points to a single ringleader behind a deadly scheme.

Ruby Franke gains fame for her strict parenting style, but her partnership with counselor Jodi Hildebrandt spirals into control; when Ruby's child escapes, he exposes abuse and the damaging, cult-like beliefs at the heart of their bond.

Ruby Franke gains fame for her strict parenting style, but her partnership with counselor Jodi Hildebrandt spirals into control; when Ruby's child escapes, he exposes abuse and the damaging, cult-like beliefs at the heart of their bond.

Cathy thought she had found the man of her dreams in Peter Tobin; but by the time she uncovers his dark secret, it was too late.

When Brian Cargill divorces his wife, Kimberly, he thinks it's the end of the worst time of his life; instead, he finds himself in a desperate battle to save his son, Jamie, from her deadly wrath.

Betty hopes her sister's son, Chance, is a beacon of hope in their troubled lives, but Betty sees his dark side early on; he lacks empathy and becomes violent until he explodes in a fit of rage, harming the one person who cared for him most.

David Magnano and his stepsister, Jessica, know that Scott Magnano is dangerous; they know they would be safer if he were gone; what David doesn't know is how much he will regret not killing Scott when he has the chance.

When Jason Worley tries to escape from Brandi by filing for divorce, she punishes him by taking away the two things most precious to him.

A failed actor returns home, ready to take out his rage on the weakest members of society; after killing four people, a chance encounter with police leads to his downfall; the interrogation room becomes the stage for this killer's final performance.

Police respond to the site of a fiery car crash alongside a Michigan highway, where they discover the badly burned body of a young woman; investigators quickly realize this is no accident but a cold-blooded murder plot.

The naked and mutilated body of a mother turns up at the bottom of a ravine in Baton Rouge, La.; when tire tracks lead investigators to a suspect, they encounter an undetected serial killer who confesses to butchering eight women over a decade.

Residents of a quaint village are terrified when a local innkeeper and two others are found brutally murdered; detectives must follow the depraved killer into the woods at night.

While being questioned in the abduction of an Anchorage barista, a young local businessman starts negotiating with investigators to reveal details of a depraved secret life as one of America's most meticulous and psychopathic serial killers.

When a graduate student suddenly goes missing, the family he's staying with immediately contacts police; days later, a horrific discovery forces investigators to face a rare kind of monster.

After Kacie Woody discovers Internet chat rooms, the popular teen has her pick of high school hunks hoping to connect; the teen is exchanging IMs with her latest love interest, when a silver van creaks to a stop outside her house.

When Ray and Marie Thornton go out for a drive in the country on Easter Sunday, they are almost chased off the road by a tailgating van and when they see the driver changing license plates and dumping a bloody sheet, they call police.

Dawnia Dacosta attends nursing school, works the late shift and goes to church for evening services; one night she runs out of fuel and walks to the nearest station; then a man in a van offers a ride back to her car.

In 2014, graduate student Tequila Suter is stabbed to death in her suburban Buffalo home; investigators' only hope of solving the case is to piece together a trail of CCTV across town and follow in the footsteps of a killer.

Shopkeeper Imran Ashgar is shot dead in his store in Columbus, Ohio; with the killers on the run, detectives are in a race against time to capture them before they strike again.

Car salesman Hufracio Arteaga is found stabbed to death in his Michigan City, Ind., office; with no witnesses, investigators use surveillance cameras from an adjacent building to find out who murdered Arteaga.

Police find the body of Fernando Silva on a boat; the crime scene reveals little about what caused Silva's death; police turn to surveillance footage for clues.

Fifty-one-year-old care worker Torrance Cheeves is found murdered in his San Antonio home; with no suspects and a trail of puzzling evidence, investigators turn to surveillance cameras in the surrounding area for answers.

The brutal murder of 17-year-old Justine Vanderschoot in 2003 devastates the community of Auburn, Calif.; 22 years later, Vanderschoot's family continues to fight to keep her killers behind bars.

The mysterious details of one teenager's murder may lead police to solve two brutal murders committed by the same deadly predator.

As police try to solve a disturbing homicide, each step of the investigation reveals another layer in a spiderweb of tragedy.

The brutal murder of 17-year-old Justine Vanderschoot in 2003 devastates the community of Auburn, Calif.; 22 years later, Vanderschoot's family continues to fight to keep her killers behind bars.

The mysterious details of one teenager's murder may lead police to solve two brutal murders committed by the same deadly predator.

As police try to solve a disturbing homicide, each step of the investigation reveals another layer in a spiderweb of tragedy.

Fifty-one-year-old care worker Torrance Cheeves is found murdered in his San Antonio home; with no suspects and a trail of puzzling evidence, investigators turn to surveillance cameras in the surrounding area for answers.

Officers in Illinois must call for backup after a renegade DUI granny resists arrest; a retired cop handcuffs his fellow neighbor, but he suspects the man is impersonating an officer; as Atlanta party guests hide, cops uncover a surprise.

Cops chase two men after a hit and run with a patrol car leaves a trail of wreckage and an unlikely hiding place; a gas station robbery is not what it appears to be, and a man spends a night in lock up after falling off his motorbike.

When cops pull a man over for an unregistered vehicle, he reports police, to the police; in Florida, a chase ensues after the driver, a local rich girl, fails to stop; in Wisconsin, police investigate reports of dogs being kept in poor conditions.

In Mayfield, a patrol officer performs a traffic stop after spotting an erratic driver; they find a friendly young woman who soon causes them headaches; in Wisconsin, a cop spots a potential drug dealer in a parking lot who lies about his identity.

A gun store robbery in Maryland piques the interest of the ATF, igniting an investigation into violence, arson and murder; as detectives zero in on the suspect, they find themselves face to face with an unlikely killer.

In 2012, a missing persons case in North Dakota grabs the attention of Homeland Security; investigators unravel a scheme involving stolen hydraulic fracturing profits as well as a ruthless con man and his murderous partner.

After pulling over a reckless driver, a police officer unlocks the key to a series of murders; investigators from various jurisdictions work in tandem to track a sadistic killer with a penchant for torture, robbery and bloodlust.

A decorated U.S. Marine falls for a married woman; suspicion and jealousy plague their affair, and the stakes are so high, they'll stop at nothing to keep it hidden from their spouses.

When lonely teenager Meagan Grunwald meets handsome 26-year-old felon Angel Garcia, it's love at first sight, but their whirlwind romance spirals into a hurricane that leaves a trail of death and devastation in its path.

A college student's new husband has a dark past that rears its ugly head and ends in a double homicide.

Killing comes easily to those with hearts of ice.

Barbara Rogers and Steven Mineo are members of an online cult; fortune teller Leonarda Cianciulli seeks to keep her son safe through human sacrifice; Geraldine Parrish persuades people to make her the beneficiary of their life insurance policies.

Stories of depraved women who don't allow sacred marriage vows to get in the way of cold blooded murder.

Clingy women who are killers.

The 2018 murder of the Colorado mom who disappeared amid an alleged breakup with her fiancé.

A double murder involving the family of a federal judge prompts an investigation of epic proportions by the FBI, U.S. Marshals and Chicago Police Department; at the end of the trail, law enforcement personnel learn the death count may climb higher.

In 1981, a woman and three teenagers are murdered in a cabin in the remote town of Keddie, Calif., and no one is ever brought to justice; now, new evidence may hold the key to finally cracking this case.

Preacher Sheryl Ruthven, a self-proclaimed prophet, beguiles her followers into subservience and uses them to settle personal scores; as her beliefs grow increasingly bizarre, she demands her congregation adopt cats.

Sheryl Ruthven, a self-proclaimed prophet, demands her followers revere cats as divine; her manipulation drives them into isolation, financial ruin and bizarre rituals, tearing families apart and exploiting loyalty, under the promise of salvation.

"Jackass" star Bam grapples with addiction; Lima takes over his treatment; online advocate BJ attacks Lima's motives and a vicious battle ensues.

A killer guns down a 46-year-old woman, and detectives discover that a fleeing Sheriff's Deputy is the assailant; less than 48 hours later, they arrest him and reveal an unrepentant psychopath capable of executing the love of his life in cold blood.

Master conman Nicholas Rossi fakes his death to evade justice, adopts new identities and leaves a trail of alleged crimes across continents.

"Jackass" star Bam grapples with addiction; Lima takes over his treatment; online advocate BJ attacks Lima's motives and a vicious battle ensues.

A killer guns down a 46-year-old woman, and detectives discover that a fleeing Sheriff's Deputy is the assailant; less than 48 hours later, they arrest him and reveal an unrepentant psychopath capable of executing the love of his life in cold blood.

Jon and Carie Hallford's return to nature promises care but instead leaves bodies decomposing in filth and provides families with concrete instead of ashes; when investigators arrive, the Hallfords flee, leaving families demanding justice.

In Wylie, Texas, young teacher Betty Gore is hacked to death on Friday the 13th, causing investigators to wonder whether a copycat killer is trying to create his own real-life "slasher" film.

When Long Island newlywed Lisa Solomon disappears on Christmas Eve, family and friends search for her tirelessly; investigators wonder whether she left her husband of two months in the middle of the night or was the victim of foul play.

At Atlanta's international airport, a passenger goes on the rampage with a fire extinguisher; in Illinois, police pull over an erratic driver who nearly causes a deadly pile up; in Texas, cops discover a giant python underneath a car.

A dismembered corpse floating in Thunder Bay opens up a vexing mystery.

In Illinois, an order of protection takes a dramatic turn after a man threatens to kill police; Florida cops pursue an unexpected peeping Tom; New Mexico cops arrest a dangerous DUI driver, but it's his inebriated girlfriend who causes more trouble.

Truckers confront aggressive drivers; a boy struggles against an angry motorist; a man uses pepper spray on an irate driver; a woman pursues another driver after a dispute.

In the Miami suburbs, a hard working mother from Trinidad vanishes into thin air; detectives Danny Smith and Jonathan Zeller soon uncover her secrets but then are stalled until they come up with a highly unusual way to smoke out the perpetrator.

A woman bites another driver after arguing about a dented door; a young woman takes evasive maneuvers to survive a road-raging driver; a woman flees from a wild driver; two cars throw things at each other in a drive-thru.

A rage-fueled driver crashes into a building; Florida drivers face chaos on the roads; New Jersey drivers try to survive their commute; an angry man picks a fight with a scooter.

Lt. Joe Kenda showcases homicide detectives from across the United States who worked tirelessly to put killers behind bars and bring justice to victims.

An aggressive man attacks a couple; motorists fend off brake-checking buffoons; a family defends themselves from a knife-wielding man; two women get heated in a hospital parking lot.

When a model scout approaches two high school boys for photos with the lure of cash and a glossy portfolio, they find it hard to resist her advances.

A woman adopts a 6-year-old child through an online re-homing forum; she's soon inspired to help re-home other children but is horrified to discover that two of them may have fallen into the clutches of a child abuser.

Bursting with confidence after losing 200 pounds, a newly single 33-year-old woman spends her time flirting with men online, then she fails to turn up for work one day.

Firefighter Sam Dreher and his wife, Danielle, are the perfect couple until their hopes of happiness are dashed and their marriage fails; Sam falls in love with another woman, triggering a chain of events that spirals out of control.

When single dad David Heisler goes missing, digital clues lead detectives into the desert, but the trail stops cold; investigators ask digital forensics experts to help them unravel this twisted mystery and reveal the truth of what happened.

When 12-year-old Aynis Vargas dies in a seemingly random attack on a party, investigators piece together clues from social media, cell phone data and surveillance footage to try to get justice for Aynis, her family and the whole community.

Detectives from the Austin, Texas, police department turn to a puzzling digital trail to uncover the horrifying truth behind 21-year-old Julie Ann Gonzalez's sudden disappearance.

When 26-year-old Erica Crippen Crosby disappears from her home in Mount Laurel, N.J., detectives must follow a digital trail to uncover the horrifying truth about what happened to her.

In the cutthroat world of Vegas showgirls, Debbie Flores Narvaez isn't afraid to ruffle feathers as she climbs to the top; when Debbie goes missing, investigators must wonder if a jealous dancer or a romantic rival took her out.

Joel Frazier is the proud father of two former rodeo queens, Camie and Jamie Frazier; suddenly he goes missing; the town rumor mill is busy, and the hostility between the women in his life is mounting, but no one can find Joel.

After sweet, insecure Kelly Bullwinkle is found dead in a remote area, investigators uncover a web of jealousy and deceit among friends; but no one is prepared for the ultimate betrayal behind her murder.

Ruby Franke gains fame for her strict parenting style, but her partnership with counselor Jodi Hildebrandt spirals into control; when Ruby's child escapes, he exposes abuse and the damaging, cult-like beliefs at the heart of their bond.

Ruby Franke gains fame for her strict parenting style, but her partnership with counselor Jodi Hildebrandt spirals into control; when Ruby's child escapes, he exposes abuse and the damaging, cult-like beliefs at the heart of their bond.

Survivors break their silence as Jessi exposes Hildebrandt's cult-like control; Ruby's journals confirm the emotional and physical abuse of her children; with evidence mounting, the court holds the women accountable and delivers long-awaited justice.

Ruby's words expose abuse at the hands of Jodi Hildebrandt, but is it over?

Ruby Franke gains fame for her strict parenting style, but her partnership with counselor Jodi Hildebrandt spirals into control; when Ruby's child escapes, he exposes abuse and the damaging, cult-like beliefs at the heart of their bond.

Survivors break their silence as Jessi exposes Hildebrandt's cult-like control; Ruby's journals confirm the emotional and physical abuse of her children; with evidence mounting, the court holds the women accountable and delivers long-awaited justice.

Ruby's words expose abuse at the hands of Jodi Hildebrandt, but is it over?

Ruby Franke gains fame for her strict parenting style, but her partnership with counselor Jodi Hildebrandt spirals into control; when Ruby's child escapes, he exposes abuse and the damaging, cult-like beliefs at the heart of their bond.

After years of a married couple ruling their street, a new neighbor who doesn't abide by them moves in; years of tension fester between the two parties until one is pushed over the edge, resulting in a shocking double-execution.

A man finds himself living between hostile neighbors on both sides, including a former U.S. marine with post-traumatic stress disorder; the neighbors' campaign of intimidation ramps up to the point of no return and ends with a deadly confrontation.

Flooding in Australian wine country raises an argument over an old fence separating neighbors; the dispute escalates from repeated screaming matches and threats to physical fighting and vandalism, culminating in a brutal stabbing death.

Two neighbors are the best of friends, but the relationship sours when one accuses the other of stealing from him; tensions rise after constant surveillance, accusations of snitching and a literal backstabbing, ending in a deadly on-camera shooting.

A firefighter moves into a family-friendly neighborhood with his wife and child, but the rambunctious teenagers living next door drive him over the edge.

In 2021, in Newport News, Virginia, postal workers Jacquie Shabazz and Tashara Jackson fall out over an alleged affair, and a simmering feud explodes.

A bitter feud erupts between business partners that ends in brutal murder.

Two cousins go to war over the same woman, with significant consequences.

Katie Call's ex, Todd, refuses to accept the collapse of their relationship and he hides video cameras and microphones in her home, biding his time to wreak a bloody revenge.

Christine's life with abusive husband Shane is a cycle of fear, humiliation and violence; after Christine escapes with her children, Shane sets off in pursuit, kicking off a series of terrifying and shocking events leading to a bloody conclusion.

When Olympic gold medalist Sheila Taormina agrees to coach an athlete, she doesn't realize he harbors dark fantasies that will turn her life into a living nightmare.

Eighteen-year-old Misty's parents warn her against becoming involved with a man who is nearly 15 years her senior, but no one realizes that Misty is actually in horrible danger.

When Mandy meets Paul online, he quickly moves to Kentucky so they can marry; love soon turns to hate when his controlling behavior turns murderous.

When Olivia marries Christopher Jones, a correctional officer, he runs his home like a prison; on Feb. 14, a day made for love turns into a day of horror, and a home security system helps detectives realize all is not what it seems.

When Stacy Malman and Robert Feldman fall in love, it's a dream come true; behind closed doors, life becomes a living hell; one night, a knock at the door forces the couple to confront the truth and triggers a series of events ending in horror.

Jessica Jaramillio escapes her abusive ex-husband, Chad Graves, but a joint custody agreement for her children means he will always be in their lives; his increasingly obsessive behavior reveals he is not who he presents himself to be.

Twenty-five-year-old Corey Parker moves to Jacksonville Beach, Fla., looking for fun in the sun; however, someone in her new circle of friends harbors a murderous intent that claims her life.

Cindy Thompson, 27, reconnects with her high school sweetheart and gets pregnant with his child, but someone wants to snuff out the couple's happiness, and Cindy's life.

When a New York man wins over $17 million in the state lottery, one decision will tear two families apart.

A woman's ex-boyfriend finds a blood-soaked bed but no sign of his former love; known for opening her home to troubled people in need, the selfless cashier should have no enemies, but detectives wonder if she paid the ultimate price for her kindness.

Rhonda Smith is a single woman who relies on the kindness of strangers at her new church, then one of them betrays her.

Cindy Thompson, 27, reconnects with her high school sweetheart and gets pregnant with his child, but someone wants to snuff out the couple's happiness, and Cindy's life.

When a New York man wins over $17 million in the state lottery, one decision will tear two families apart.

A woman's ex-boyfriend finds a blood-soaked bed but no sign of his former love; known for opening her home to troubled people in need, the selfless cashier should have no enemies, but detectives wonder if she paid the ultimate price for her kindness.

Rhonda Smith is a single woman who relies on the kindness of strangers at her new church, then one of them betrays her.

Twenty-five-year-old Corey Parker moves to Jacksonville Beach, Fla., looking for fun in the sun; however, someone in her new circle of friends harbors a murderous intent that claims her life.

At first, Reverend Jim Jones focuses on helping those in need; then, in 1975, Jones establishes a utopia known as Jonestown in Guyana which turns into a hell on earth as Jones spirals deeper into his own paranoia.

The Word of Life Church starts as a small bible study group led by Pastor Jerry Irwin; after the pastor's death, his daughter, Tiffanie, gains control and makes life hell for the church followers, leading to the brutal beating death of a teenage boy.

In the fall of 2019, a boy and his stepsister go missing; grandparents Larry and Kay Woodcock desperately try to find out what happened to them and why.

A 7-year old boy and his 17-year-old stepsister have been missing for months; their mother defies a court order to appear in Idaho with her children; the boy's grandparents embark on a desperate search for answers.

Lori Vallow is extradited from Hawaii to Rexburg, Idaho, to face charges of deserting her missing children, JJ and Tylee; Kay and Larry continue to search for answers and try to remain hopeful, but in the summer of 2020 the case takes a tragic turn.

Ruby Franke gains fame for her strict parenting style, but her partnership with counselor Jodi Hildebrandt spirals into control; when Ruby's child escapes, he exposes abuse and the damaging, cult-like beliefs at the heart of their bond.

Ruby Franke gains fame for her strict parenting style, but her partnership with counselor Jodi Hildebrandt spirals into control; when Ruby's child escapes, he exposes abuse and the damaging, cult-like beliefs at the heart of their bond.

Survivors break their silence as Jessi exposes Hildebrandt's cult-like control; Ruby's journals confirm the emotional and physical abuse of her children; with evidence mounting, the court holds the women accountable and delivers long-awaited justice.

Ruby's words expose abuse at the hands of Jodi Hildebrandt, but is it over?

Elizabeth Chambers unravels the deception and manipulation that leads to the bloody ending of Kelly Sutliff's marriage, but a vicious attack is only the start of Kelly's nightmare; living in fear, Kelly turns to an unlikely source for protection.

Elizabeth meets with the Harris family to investigate the tragic loss of their beloved daughter, and sister, Sarah; what was supposed to be a routine dental visit for Sarah turned into a toxic and dangerous relationship with a well-respected surgeon.

Elizabeth investigates the troubling case of Kate Ranta, a military wife who found herself in an abusive relationship and battling all the systems that protect abusers.

Brittany Steier devotes her life to being a mom and having a happy family; when the father of her children, Edward June Harris Jr, becomes increasingly violent and unpredictable, Brittany has to make a decision that will end up costing her life.

Raised in a big Mormon family, Ashlee Harmon grows up wanting that same kind of lifestyle; she marries her college boyfriend, Emmett Corrigan, and raises five kids while he opens his own law firm, but dirty secrets soon trigger a deadly showdown.

When popular teacher Simeonette Mapes-Crupi is found dead in her Staten Island condo, all evidence points to a brutal robbery gone wrong; as detectives dig deeper, they uncover a wealth of secrets.

In Snellville, Ga., Heather Strube has a great life of working in the family floral shop, raising her toddler son, and looking forward to a bright future with her new boyfriend; then, a Sunday trip to the shopping center shatters everything.

Questions persist surrounding Cameron Todd Willingham's conviction and death sentence, but according to Stacy Kuykendall, who knew him better than anyone, Cameron is a monster who was guilty as charged and deserved to die.

As children, Tabitha and Ann endure their brother Terry's twisted games; as adults, they try to cut ties, but their mother, Edwardyne, clings on and is always willing to give him one more chance.

An early morning fire inside an apartment complex soon reveals something worse, the dead bodies of a young woman and an infant boy; detectives find a psychopath who appears polite and gentle, then later as a pawn of imagined demons.

Police first arrest a man for discharging a firearm and soon discover dead bodies inside his apartment; detectives try to make sense of the bloody crime scene and a psychopath willing to murder those closest to him.

A husband becomes the prime suspect when his wife goes missing as police discovers his checkered past; lacking a body or evidence of foul play, detectives hope to gain a confession from a man they realize might be a cold-blooded psychopath.

As children, Tabitha and Ann endure their brother Terry's twisted games; as adults, they try to cut ties, but their mother, Edwardyne, clings on and is always willing to give him one more chance.

An early morning fire inside an apartment complex soon reveals something worse, the dead bodies of a young woman and an infant boy; detectives find a psychopath who appears polite and gentle, then later as a pawn of imagined demons.

Police first arrest a man for discharging a firearm and soon discover dead bodies inside his apartment; detectives try to make sense of the bloody crime scene and a psychopath willing to murder those closest to him.

A husband becomes the prime suspect when his wife goes missing as police discovers his checkered past; lacking a body or evidence of foul play, detectives hope to gain a confession from a man they realize might be a cold-blooded psychopath.

Questions persist surrounding Cameron Todd Willingham's conviction and death sentence, but according to Stacy Kuykendall, who knew him better than anyone, Cameron is a monster who was guilty as charged and deserved to die.

Detectives track a predator who uses the great outdoors as both a hunting ground and a hiding place; the killer's knowledge of the wilderness gives him advantage, forcing investigators to dig deep into his psyche and rely on their training.

A detective discovers that he knows a kidnapper personally and that getting the victim back alive now hinges on his relationship with a maniac.

Ben Oxley is shot in the head at point-blank range while sleeping in bed; his wife becomes the focus of the investigation, but it will take years before investigators bring the killer to justice; sometimes crimes occur when key characters are asleep.

When a home invasion leaves Bill Ross murdered in his sleep, detectives in Shelbyville, Tenn., scramble to uncover the identity of a pair of masked men; as they dig deeper, they discover a troubling web of secrets and lies.

In Palm Beach County, Fla., detectives discover pregnant mother of three, Makeva Jenkins, brutally murdered in her sleep; they delve into her extensive use of social media as they look for clues, uncovering a twisted plot and betrayal.

After Michigan detectives find a popular hairstylist stabbed to death, their suspects include the victim's landlord, her married lover and an aggressive ex-boyfriend; an unexpected call ultimately leads police in the right direction.

A killer stabs a beloved New Jersey woman 44 times in her home; investigators have the culprit's DNA but finding him will require an assist from the FBI, a media blitz and a random tip with details only the murderer would know.

On Easter Sunday in Massachussetts, police find the remains of a 24-year-old woman; with DNA in its infancy, it will take 25 years before a determined DA, advances in DNA technology and a suspect's plea can bring the case to its shocking conclusion.

After a night out, a beautiful young woman ends up in a shallow grave, and her killer evades police for decades.

The leading advocate for the science of cold fusion is beaten to death and investigators theorize about a wide range of suspects, from corporate executives to burglars.

The killer of a disabled Denver woman is tracked down and police try to establish whether or not she was killed for her money or if there was a more personal motive.

After an 8-year-old girl is found strangled to death In Ocean Shores, Wash., a local woman is instrumental in helping detectives bring the young victim's killer to justice.

Popular high school student Riley Crossman disappears, igniting a statewide search; investigators discover her body, and they have their hands full when the students and residents of Berkeley Springs become suspects.

Secrets emerge in a quiet neighborhood when young mother Stacey Shoemaker is shot dead; the once tight-knit cul-de-sac in Wagoner, Okla., is now full of suspicions, finger-pointing and fear.

Joy Dishneau plans on becoming a small business owner in the Ozarks, but she is found murdered in her own shop, and all of her employees become suspects.

In Shawnee, Okla., Marshall Dent goes missing on Christmas Eve, and the Native American community bands together; after weeks of searching, they find Dent in a shallow grave on sacred ground, and authorities scramble to find his killer.

After years of abuse, Cheryl musters the courage to leave her husband, Thom; he stalks her and torments their two children; when Cheryl finds a new love, her ex sets a trap to take the ultimate revenge.

A Russian immigrant's stabbing leads to his wife: beautiful, charming, and lethal; a runaway teen aids her boyfriend in slaughtering grandparents, Ws manhunts close in, both women's facades crumble, revealing the chilling minds of killers.

In 1965, Rodney Alcala attacks a teenage girl - only to brutalize and rape her again three years later; she feels guilty when she discovers he assaulted another girl soon after - but they are merely two of this man's countless victims.

Six-year-old beauty queen JonBenét Ramsey is found murdered in her Boulder, Colo., home in 1996, and investigators try to determine whether she was killed by an intruder or by a member of her own family.

A Russian immigrant's stabbing leads to his wife: beautiful, charming, and lethal; a runaway teen aids her boyfriend in slaughtering grandparents, Ws manhunts close in, both women's facades crumble, revealing the chilling minds of killers.

In 1965, Rodney Alcala attacks a teenage girl - only to brutalize and rape her again three years later; she feels guilty when she discovers he assaulted another girl soon after - but they are merely two of this man's countless victims.

Six-year-old beauty queen JonBenét Ramsey is found murdered in her Boulder, Colo., home in 1996, and investigators try to determine whether she was killed by an intruder or by a member of her own family.

After years of abuse, Cheryl musters the courage to leave her husband, Thom; he stalks her and torments their two children; when Cheryl finds a new love, her ex sets a trap to take the ultimate revenge.

Peter Van Sant investigates the death of snake breeder Ben Renick, originally thought to be the victim of an attack by one of his prized reptiles.

A woman convicted of murdering her husband discovers problems with evidence used against her at trial after nearly two decades in prison.

On Feb. 19, 1982, Jim Krauseneck tells police he found his wife, Cathy, dead in their bed with an ax in her head; for four decades, Cathy's murder remained unsolved until now.

In August 2022, after 46 years, the last of three men convicted of kidnapping 26 children and their bus driver was paroled from a prison in California; survivors of that harrowing event share powerful and emotional interviews with David Begnaud.

When she interrupts a burglary at home, Diane Pranske is abducted and left for dead across state lines; detectives turn to surveillance video to find her assailant, and investigators try to get justice for this brutal crime.

Brianna Foisy, 21, and Jason Netter, 41, are killed on an Alaskan bike path in 2016; it's a crime that baffles police, until similar murders begin to happen; police follow clues in a shocking murder to track the killer.

A woman's lively get-together at her local bar ends with a baffling murder.

In a Calgary pub in 2010, 36-year-old barman Dexter Bain is brutally slain during a failed robbery; detectives use surveillance footage from a nearby store to find the suspect and stage a filmed sting operation to prove who pulled the trigger.

In Texas, a suspect shoots an officer multiple times during a foot chase; the race is on as backup tries to locate the injured officer and track down the assailant.

In Oklahoma, officers negotiate with a delusional father who is armed and dangerous; in Florida, officers chase a joyrider who is set on evading capture; in Arizona, state troopers rescue a driver trapped in torrential waters.

A man with an AK-47 steals a police car and fires at police during a 16-mile citywide chase; a home invasion call escalates into something dangerous.

In New York, a domestic disturbance takes a turn which changes a police chief's life; in Florida, an officer separates from his K-9 while chasing two suspects; in Indiana, an officer stares down the barrel of a suspect's gun.

After a young mother goes missing on the streets of Washington, DC, Detective Jackie Middleton must get to the bottom of a cold-blooded conspiracy.

In rural Minnesota, a masked murderer bludgeons an entire family in their sleep; as small-town secrets unravel, Sheriff Mike Gormley uncovers a dangerous love triangle and a vengeful killer who is willing to risk his own blood for retribution.