A man is attacked by a grizzly bear in a remote forest area; a woman engages in a gun battle with three masked men who invade her home; a woman is assaulted by a man posing as a maintenance worker.

A store manager and his staff are shot by two killers; a young man has both his arms torn off in an accident; a young girl is kidnapped by a serial killer.

After 26-year-old rideshare driver Carolina Vargas drives a nice stranger to his hotel, she has no qualms about giving him another ride; her trusting gesture turns tragic and Carolina is forced to fight for her life.

JaRay Wilson texted her mother just minutes before she vanished, and the teen's friends, family and community searched for answers for over a year; someone from JaRay's inner circle later surfaced with shocking details.

When mother-of-two Deanna Cook misses her daily call to her mom, her family worries that Deanna's stalker may have something to do with it; her family's 911 call falls on deaf ears and they are forced to make a discovery.

When Deserae Turner doesn't come home after school, her mother and friends begin texting her incessantly; a massive search ensues and 47 of her friends are questioned; her Snapchat turns out to be the key to the mystery.

The family of Miya Marcano share the agonizing details of what happened around the beautiful, 19-year old's disappearance.

James Allen Selby, a serial rapist who eluded police for years.

Police hunt for over 15 years for a serial killer who lures women to Kansas for sadomasochistic sexual trysts at hotels; unprecedented access to surveillance photos and video from the investigation provides a glimpse inside the probe.

A second murder solves the first; genetic trace solves a teen's murder.

When a church deacon is found shot to death it looks like police may have stumbled upon a multi-party murder plot; a wife remains a key suspect in her husband's murder case for six years, until she attempts to prove her own innocence.

A woman is found murdered in her mobile home; an Oregon man is shot dead.

A co-worker goes to check on a woman who failed to show up for work; a woman reports being raped in her home.

A dry cleaning tag inside a sweatshirt left at a crime scene helps police track down a serial killer and rapist who had been eluding them for years.

When a church deacon is found shot to death it looks like police may have stumbled upon a multi-party murder plot; a wife remains a key suspect in her husband's murder case for six years, until she attempts to prove her own innocence.

A woman is found murdered in her mobile home; an Oregon man is shot dead.

A co-worker goes to check on a woman who failed to show up for work; a woman reports being raped in her home.

A dry cleaning tag inside a sweatshirt left at a crime scene helps police track down a serial killer and rapist who had been eluding them for years.

Police hunt for over 15 years for a serial killer who lures women to Kansas for sadomasochistic sexual trysts at hotels; unprecedented access to surveillance photos and video from the investigation provides a glimpse inside the probe.

A second murder solves the first; genetic trace solves a teen's murder.

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A man is taken hostage by Marxist rebels; two girls are abducted while walking home from school.

Two women fight for their lives when an attacker ambushes them on a mountain trail; two men survive 14 hours adrift at sea.

A woman survives three shotgun wounds to the head; a family is attacked by bees; a school library shooting rampage.

A woman plays dead after her boyfriend chokes and shoots; a man gets stuck in a frozen stream while snowmobiling; a federal prosecutor is abducted.

Lacey and Stacey restrain a patient suffering from hallucinations after a drug overdose; a man calls 911 to save his wife from cardiac arrest; Alex and Jamal must determine what drug caused a woman to go unresponsive before her heart stops beating.

Alex and Jamal respond to a call for a man with a broken ankle who fell from a fire escape; Steven and Sam are called to a structure fire and must search inside for possible victims; a call for a patient with back pain takes an emotional turn.

In Austin, Texas, Luddy and Finch practice parking-lot medicine when they respond to a heroin overdose; Niki and Nicole help a woman suffering emotional trauma in Baton Rouge, La.; Yonkers, N.Y., medic Alex reveals a sobering truth about her past.

An overdose patient wakes up swinging in the back of Meghan and Dee's ambulance; Ariel and Cunningham rush to the scene of a flaming motorcycle wreck; Kim and Audrey hope to find a missing truck driver at the bottom of a ravine.

Paramedics rush to the aid of a man attacked by his girlfriend with a box-cutter knife; gunshots fired and a man down; first responders plead with a patient to go the hospital before she has another potentially life-threatening seizure.

Police go under cover to catch a man they suspect of killing three prostitutes; a letter opener links a priest to the murder of a nun.

A banker is beaten to death in his bed; a man with a guilty conscience helps police.

Detectives are baffled when two young girls are raped, murdered, and dumped in an abandoned house in Akron, Ohio; a 26-year-old mother of three disappears on Christmas Eve in 1995, but the missing person case goes cold when police can find few clues.

Elizabeth Vargas takes a fresh look at the most notorious cold-case murder in American history as new leads are tracked and new DNA tests are conducted; featuring an exclusive interview with John Ramsey, as well as many never-before-seen photos.

Key evidence and information in the 1996 murder of 6-year-old beauty queen JonBenét Ramsey sheds new light on who may have been responsible for the crime; John Ramsey discusses his daughter's death in a sit-down interview.

Elizabeth Vargas takes a fresh look at the most notorious cold-case murder in American history as new leads are tracked and new DNA tests are conducted; featuring an exclusive interview with John Ramsey, as well as many never-before-seen photos.

Key evidence and information in the 1996 murder of 6-year-old beauty queen JonBenét Ramsey sheds new light on who may have been responsible for the crime; John Ramsey discusses his daughter's death in a sit-down interview.

A banker is beaten to death in his bed; a man with a guilty conscience helps police.

Detectives are baffled when two young girls are raped, murdered, and dumped in an abandoned house in Akron, Ohio; a 26-year-old mother of three disappears on Christmas Eve in 1995, but the missing person case goes cold when police can find few clues.

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In this compelling investigation, John Walsh delves into OmegaXL and its natural origins. Discover how this innovative supplement can provide relief from joint pain and improve your quality of life, all grounded in extensive research.

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In 1989, Richard Mallory is found shot dead in the brush off the side of a Florida highway, just the first of seven murdered men found in a similar setting; their predator is Aileen Wuornos, a woman fleeing from her troubled past.

Before he hunted down his first victim in the wilds of Alaska, Robert Hansen was a successful businessman with a family in Anchorage, but his intense feelings would build into a dark desire to exert the ultimate control over 17 victims.

Known primarily for the murders of University of Florida students, a man's first murders were in his hometown of Shreveport, La.; the man dreamed of having a loving family as an adult, but his dark fantasies drove him to destroy a family instead.

One of the most well-known serial killers, Richard Ramirez terrorized Southern California in the mid-1980s, where anyone could be a target of the sadistic murderer.

The articulate and boastful killer is remembered for terrifying the coastal town of Santa Cruz, where he picked up and dismembered hitchhiking college students in the early 1970s.

In rural Epping, N.H., everyone knows Sheila LaBarre as an eccentric widow who loves her rabbits; her turbulent childhood in Alabama, a coma-induced vision, and the death of her wealthy husband all send Sheila on a warped mission to kill.

Someone is killing young African American women in Charlotte, N.C., and the police seem unable to stop it; what the police don't realize is that the cases all have a commonality, which is a connection with Henry Louis Wallace.

African American women in the Mt. Pleasant neighborhood of Cleveland were vanishing; Anthony Sowell found the control he was so desperate for when he overpowered his first vulnerable victim - a woman only hoping to connect with a friendly face.

Exploring what shaped serial killer Arthur Shawcross' trajectory from "Artie Oddball" to murderer; he might have been known for killing women along Rochester's Genesee River, but his first murder was years earlier.

Growing up gay and effeminate in the hyper masculine bayou was tough on Ronald Dominique; an inability to connect and a sexual assault in jail may have cemented his decision to kill his first victim, tragically the beginning of years of murder.

In August of 1978, 14-year-old Lisa Gilbert and her 13-year-old brother, Randy, were attacked by a stranger in their newly built home in Lansing, Mich.

In November 1988, 27-year-old Enietra Margette is walking to a party in South Los Angeles, when a neatly dressed man offers her a ride; soon after she gets into the car, the driver, Lonnie Franklin, shoots the passenger point-blank in the chest.

Morgan Rowan describes how she was brutally attacked in 1968 by Rodney Alcala during a party at his Hollywood home; three weeks later, Alcala would abduct and attack 8-year-old Tali Shapiro, who describes her chilling assault in her own words.

Cynthia Vigil recounts her incredible act of survival and strength and describes how she put an end to the horror brought on by the Toy Box Killer.

Bergen County, N.J., Chief of Detectives Robert Anzilotti elicited murder confessions from a vicious but relatively unknown serial killer, Richard Cottingham, nicknamed the Torso Killer; Anzilotti's mission to tie Cottingham to additional murders.

Bergen County, N.J., Chief of Detectives Robert Anzilotti continues his mission to tie Cottingham to additional murders and to get him to confess to more cold-case homicides.

Bergen County, N.J., Chief of Detectives Robert Anzilotti elicited murder confessions from a vicious but relatively unknown serial killer, Richard Cottingham, nicknamed the Torso Killer; Anzilotti's mission to tie Cottingham to additional murders.

Bergen County, N.J., Chief of Detectives Robert Anzilotti continues his mission to tie Cottingham to additional murders and to get him to confess to more cold-case homicides.

In August of 1978, 14-year-old Lisa Gilbert and her 13-year-old brother, Randy, were attacked by a stranger in their newly built home in Lansing, Mich.

In November 1988, 27-year-old Enietra Margette is walking to a party in South Los Angeles, when a neatly dressed man offers her a ride; soon after she gets into the car, the driver, Lonnie Franklin, shoots the passenger point-blank in the chest.

Morgan Rowan describes how she was brutally attacked in 1968 by Rodney Alcala during a party at his Hollywood home; three weeks later, Alcala would abduct and attack 8-year-old Tali Shapiro, who describes her chilling assault in her own words.

Cynthia Vigil recounts her incredible act of survival and strength and describes how she put an end to the horror brought on by the Toy Box Killer.

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The federal government seeks the death penalty for convicted murderer and drug kingpin Juan Raul Garza, who made millions of dollars smuggling marijuana into the United States from Mexico.

Johnny Eng, one of the most notorious drug traffickers in the history of Manhattan's Chinatown.

Thompson rose to the top of the cocaine trade; she was released from prison in 2005 and is now an evangelical minister.

Maria Leon commanded a reign of terror in L.A.; the criminal underworld created by her murderous brood of children.

Tommy Lucchese, one of the most successful and notorious members of the Italian-American Mafia, pioneered and perfected labor rackets in New York City's kosher chicken industry, the garment district and the world of professional boxing.

As leader of Murder, Inc., Albert Anastasia became one of the most vicious and feared mob bosses of the twentieth century.

"Big Paul" Castellano serves as a boss of the Gambino crime family during the '70s and '80s, overseeing rackets in construction, pornography and more.

John Gotti starts out as the leader of a group of young thugs in his South Bronx neighborhood and works his way up to a leadership position in the Gambino crime family.

Virginia Hill, Arlyne Brickman and Karen Hill are mob ladies with looks that could kill and the connections to take out anyone in their way.

Jimmy Burke was one of the most prolific mob earners in New York history.

Carlos Marcello becomes the mafia boss of New Orleans in 1947 and maintains power for almost four decades.

Joey Massino brought the Bonanno mob family back after it was destroyed by the FBI.

In 1979, Houston's Latin community was plagued by police violence and a rising murder rate; it was in this climate that six officers were selected to form an all-Latin homicide unit; the mission: solve all open Latin murder cases in just 90 days.

After a 90-day trial by fire, The Chicano Squad is here to stay; the squad progress is now under threat with the arrival of Colombian drug cartels, who have unleashed a wave of violence that has earned Houston the title Murder Capital of the US.

In 1979, Houston's Latin community was plagued by police violence and a rising murder rate; it was in this climate that six officers were selected to form an all-Latin homicide unit; the mission: solve all open Latin murder cases in just 90 days.

After a 90-day trial by fire, The Chicano Squad is here to stay; the squad progress is now under threat with the arrival of Colombian drug cartels, who have unleashed a wave of violence that has earned Houston the title Murder Capital of the US.

Carlos Marcello becomes the mafia boss of New Orleans in 1947 and maintains power for almost four decades.

Joey Massino brought the Bonanno mob family back after it was destroyed by the FBI.

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Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

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Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

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A man is stranded in the ocean after he gets separated from his dive partner; a woman is robbed by her best friend and brother; a woman is shot and held captive.

A home invasion leaves a man fighting for his life; a boat capsizes; a woman faces a terrifying death locked in the trunk of her car.

A woman is abducted by another woman who tries to steal her unborn baby; a geologist is attacked by a bear; a woman is shot and held hostage.

As the undercover civilians settle into the Fulton County Jail and new members enter, inmate suspicions and power plays keep the participants on edge.

Lockdowns result following a violent fight in the women's pod and an abuse of power in pod 600, proving that the luck of the draw with cellmates directly influences the jail experience.

The participants face difficult obstacles and must make risky alliances as they struggle to survive life on the inside.

A flood in the Fulton County Jail's South Annex, escalating problems with cellmates, and respect issues push the participants to the brink of despair.

Suspicions surround the male participants; the women struggle to continue, as one considers dropping out of the program.

The participants at Atlanta's Fulton County Jail learn that small mistakes can have big consequences; the Bloods in 500 continue to grow more powerful.

When 8-year-old April Tinsley is found dead in a Fort Wayne, Ind., the community is shaken; disturbing letters then appear, penned by her killer, targeting other young girls; police scramble to catch April's murderer before he strikes again.

When model Dawn Koons,18, heads to California with dreams of stardom, her family back in Yonkers worry she's made a mistake; within months, her body is found in her bathtub; police have a suspect but unmasking her killer takes nearly 40 years.

When 9-year-old Campfire Girl, Candy Rogers, turns up dead after selling mints door-to-door; spokane detectives launch a dogged campaign to find her killer; one of the longest Cold Case investigations in Washington State history.

In July 1970, the brutal murder of single mom Loretta Jones leaves 4-year-old Heidi Jones motherless; nearly 40 years later, Heidi vows to solve her mother's cold case and calls on an old high school friend to help her find justice for Loretta.

When human bones are discovered in the woods in December 1985, it puts an end to the search for missing teen David Reed; skull fractures point to murder, but it will be decades before investigators can find David's killer.

When firefighter Gary Parks is killed in a fire ruled to be arson, the investigation into his death shifts to homicide; a serial arsonist is thought to be the culprit, but it takes a dogged cold-case detective to track down the real killer.

When Cree woman Shirley Soosay goes missing in 1980, her niece Violet promises her grandmother that she will bring Shirley home; Violet never dreamed the search for Shirley - and justice - would take a lifetime.

In July 1970, the brutal murder of single mom Loretta Jones leaves 4-year-old Heidi Jones motherless; nearly 40 years later, Heidi vows to solve her mother's cold case and calls on an old high school friend to help her find justice for Loretta.

When human bones are discovered in the woods in December 1985, it puts an end to the search for missing teen David Reed; skull fractures point to murder, but it will be decades before investigators can find David's killer.

When firefighter Gary Parks is killed in a fire ruled to be arson, the investigation into his death shifts to homicide; a serial arsonist is thought to be the culprit, but it takes a dogged cold-case detective to track down the real killer.

When Cree woman Shirley Soosay goes missing in 1980, her niece Violet promises her grandmother that she will bring Shirley home; Violet never dreamed the search for Shirley - and justice - would take a lifetime.

When model Dawn Koons,18, heads to California with dreams of stardom, her family back in Yonkers worry she's made a mistake; within months, her body is found in her bathtub; police have a suspect but unmasking her killer takes nearly 40 years.

When 9-year-old Campfire Girl, Candy Rogers, turns up dead after selling mints door-to-door; spokane detectives launch a dogged campaign to find her killer; one of the longest Cold Case investigations in Washington State history.

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Wounded Warrior Project is changing the way our nation cares for veterans and helping them thrive for a lifetime. Join Trace Adkins and Dan Nevins to learn about the journeys of four injured veterans and how no warrior is left behind.

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A young girl is turned into a sexual slave; A young man is brainwashed ; a young woman breaks out of a religious organization she was born into.

A woman is terrorized in her apartment; a man is attacked by a grizzly bear; a 16 year old girl is abducted at knife point.

A single mom is attacked by an old classmate after spurning his affections; a gold prospector survives five days in the Australian Outback; a woman is left for dead after being shot in a carjacking.

Masked gunmen threaten to kill a woman's daughter if she doesn't rob the bank vault where she works; two teens in a sailboat are swept out to sea for six days.

A man disappears just a few hours after warning his family that if he were to go missing, a particular friend would be the culprit.

Authorities pursue a kidnapper/rapist deep into the mountains of Eastern Tennessee.

Detective Peppers and his team search for the prime suspect in a case where a young man was shot and left paralyzed during a robbery.

A mother is on the run after brutally attacking her own children.

Cmdr. Lenny DePaul and Senior Parole Officer Vinny Senzamici track a man with a lengthy and violent criminal history.

The team joins forces with the Puerto Rico Task Force to apprehend a high-ranking member of the Latin Kings gang, who is wanted for kidnapping and shooting a man.

A parolee on the Most Wanted List must be caught before he raises the stakes.

A deputy must catch a criminal with nine children a second time.

Commander Lenny DePaul launches an intense search for a sex offender wanted for larceny and violating his parole.

An armed robber hides in his hometown of Syracuse, N.Y.

The bodies of five people abducted from a restaurant in 1983 are found in an oil field; the main suspect is long believed to be a well-connected local man, until evidence reveals the true killers had been hiding in plain sight for decades.

On Easter Sunday of 1992, the body of missing woman Lisa Ziegert is found in a field; the investigation yields many leads, but no true suspect; after more than two decades on ice, the case is revived when DNA phenotyping puts a face to the killer.

In 1972, the body of Jody Loomis is found in the woods; thirty-four years later, the killer's DNA is recovered from Jody's old clothing but it isn't matched until 2018 when genetic genealogy helps point to one suspect.

The body of Lori Nesson is found in a ditch in 1974, but the search for her killer finally begins when the cause of death is changed to homicide 40 years later.

In a city of eight million, landlord Bruce Blackwood disappears without a trace in March 2006. Though there is no body, the NYPD is sure this is a homicide and they, along with Bruce's brother Ed, spend the next nine years searching for answers and a killer.

When 13-year-old Jennifer Bastian is abducted and murdered in August 1986, residents of Tacoma, Wash., panic; convinced a predator is on the loose, police embark on a 32-year inquiry to catch the killer.

Just two years into their marriage, Chuck and Cheryl Hall are torn apart when Chuck finds Cheryl murdered; though Cheryl's family is certain they know her killer, the law isn't as sure; decades later, a DNA match erases all doubt.

The body of Lori Nesson is found in a ditch in 1974, but the search for her killer finally begins when the cause of death is changed to homicide 40 years later.

In a city of eight million, landlord Bruce Blackwood disappears without a trace in March 2006. Though there is no body, the NYPD is sure this is a homicide and they, along with Bruce's brother Ed, spend the next nine years searching for answers and a killer.

When 13-year-old Jennifer Bastian is abducted and murdered in August 1986, residents of Tacoma, Wash., panic; convinced a predator is on the loose, police embark on a 32-year inquiry to catch the killer.

Just two years into their marriage, Chuck and Cheryl Hall are torn apart when Chuck finds Cheryl murdered; though Cheryl's family is certain they know her killer, the law isn't as sure; decades later, a DNA match erases all doubt.

On Easter Sunday of 1992, the body of missing woman Lisa Ziegert is found in a field; the investigation yields many leads, but no true suspect; after more than two decades on ice, the case is revived when DNA phenotyping puts a face to the killer.

In 1972, the body of Jody Loomis is found in the woods; thirty-four years later, the killer's DNA is recovered from Jody's old clothing but it isn't matched until 2018 when genetic genealogy helps point to one suspect.

Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

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Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

A mother is jammed into a snow-filled garbage can by her ex-husband; a woman struggles to escape a pile of bodies after an elevator malfunction; three men attack a bar owner as part of a gang initiation.

Abducted and raped; a accident on a boat; a domestic argument leaving two people dead.

A young mother is attacked by a man she meets at a party; a snowmobiler survives a series of avalanches; a 14-year old and his friend are attacked.

Attacked and abducted by a church handyman, an elderly woman is left in the trunk of her car to die; a miner and eight co-workers survive 77 hours trapped in a rapidly flooding coal mine.

Police learn the key witness in the stabbing death of a beloved aunt was an imposter; a return to the crime scene reveals a clue hidden in plain sight.

A special cold-case unit needs a small town's help to solve the 22-year-old murder of a Michigan teenager whose body was found in the woods.

When 14-year-old Nacole Smith is brutally murdered in 1995 on a wooded path in Atlanta, the police and community rally around her mother as she seeks justice; it will take decades and a second brutal assault to finally reveal Nacole's killer.

When jewelry seller Minerva Cantu, 26, is found bound, gagged and lifeless in her home, police suspect robbery as the motive; but who killed this mother as her infant slept in the next room is a mystery that would haunt one detective for 20 years.

Teens Llianna Adank and Eric Goldstrand are found shot to death at an Oregon park in 1977; detectives doggedly pursue leads for 40 years until a single piece of evidence leads them to a suspect three states away.

When Mary Scott, 23, is found murdered in her San Diego home in 1969, the case quickly loses steam with few leads; years later, Mary's daughters grow determined to find answers about the mother they barely knew, and a crime that's 50 years cold.

When the blood-smeared car of 27-year-old Stefanie Watson is found in a Maryland parking lot, her family holds out hope she's still alive; but when a jawbone is dumped in a local neighborhood, a missing persons investigation becomes a murder.

When 31-year-old Linda Slaten is brutally strangled in her Lakeland, Fla., home in 1981, a complex web of suspects emerges; the case takes a dramatic turn when a DNA hit exposes the sinister underbelly of a seemingly peaceful community.

When Texas gas store owner Subir Chatterjee, 58, is shot inside his check cashing booth in 2002, detectives suspect his killer is someone Subir knew; with the murderer's DNA in hand, one detective refuses to retire until the case is solved.

When gambler Scott Martinez, 47, is found eviscerated by a sword in his La Mesa, Calif., home, investigators can't tell who is telling the truth within his inner circle; it takes 13 years and an advance in DNA analysis to find his killer.

When the battered body of Shawna Yandell, 16, is found floating in Washington State's Yakima River, detectives first suspect those closest to her; the case grew cold until new DNA technology revealed a callous killer that no one suspected.

When Susan Woods, 30, is found beaten and drowned in her tub in America's cowboy capital, suspicion falls on her estranged husband; with a suspect's DNA in hand, detectives go back to the basics to unmask a killer cowboy living in plain sight.

When Texas gas store owner Subir Chatterjee, 58, is shot inside his check cashing booth in 2002, detectives suspect his killer is someone Subir knew; with the murderer's DNA in hand, one detective refuses to retire until the case is solved.

When gambler Scott Martinez, 47, is found eviscerated by a sword in his La Mesa, Calif., home, investigators can't tell who is telling the truth within his inner circle; it takes 13 years and an advance in DNA analysis to find his killer.

When the battered body of Shawna Yandell, 16, is found floating in Washington State's Yakima River, detectives first suspect those closest to her; the case grew cold until new DNA technology revealed a callous killer that no one suspected.

When Susan Woods, 30, is found beaten and drowned in her tub in America's cowboy capital, suspicion falls on her estranged husband; with a suspect's DNA in hand, detectives go back to the basics to unmask a killer cowboy living in plain sight.

When the blood-smeared car of 27-year-old Stefanie Watson is found in a Maryland parking lot, her family holds out hope she's still alive; but when a jawbone is dumped in a local neighborhood, a missing persons investigation becomes a murder.

When 31-year-old Linda Slaten is brutally strangled in her Lakeland, Fla., home in 1981, a complex web of suspects emerges; the case takes a dramatic turn when a DNA hit exposes the sinister underbelly of a seemingly peaceful community.

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A young girl is abducted and raped by a serial killer; a man is trapped under the rubble from the Haitian earthquake; a woman is beaten and slashed with scissors by a neighbor.

Jayne fights to save Eduardo after he is kidnapped, tortured, confined to a box and shot twice.

Danielle is shot point blank in the head by a 14 year old boy; Amy falls 60 feet into a rocky ravine; Mark is attacked with a knife on his boat.

A woman is abducted at knife-point; a farmer rips his hand off to escape from a combine harvester; a girl is left for dead after having her throat slit.

Residents of small-town Robeson, Penn. were stunned when 23-year-old Ashley Kline went missing on New Year's Eve; the gruesome truth rocked the community.

Hannah Anderson's best friend knew something was wrong when Hannah stopped responding to her texts; no one knew that Hannah had been abducted by someone close to her; the amber alert system was used for the first time.

The missing and murder rates of Indigenous women are disproportionately higher than any other group, so when beautiful Jalajhia Finklea vanishes the day before her 18th birthday, her Wampanoag tribe members immediately take action.

When Deserae Turner doesn't come home after school, her mother and friends begin texting her incessantly; a massive search ensues and 47 of her friends are questioned; her Snapchat turns out to be the key to the mystery.

When 22-year-old Molly Jane Matheson doesn't show up for work, her mother, Tracy, drives to her Fort Worth, Texas, apartment to check on her; Tracy's grim discovery uncovers a string of related crimes that inspire Molly's family to fight for change.

A wiretapped conversation between a suspected killer and his sister cracks a 9-year-old murder case; a geologist finds human bones, solving the murder of a Virginia woman.

DNA evidence solves the murder of a female law student; a man confesses to the random killing of a bowhunter.

A 25-year-old woman is killed in a hotel room in 1978; a 25-year-old woman is shot to death during a jewelry-store robbery in 1980.

Detective Danny Reyes investigates the 1990 murder of a Fort Worth, Texas woman.

The 1988 rape and murder of a California woman; a jailhouse snitch.

Young girls are sexually assaulted while waiting for their school buses; in 1991, a 9-year-old girl disappears from her home and is found murdered.

Police in Albany, N.Y., get a surprise when a killer they think targets only older women is suspected in the murder of an elderly man; the contents of a secret storage shed hold the clues to a murder that has gone cold for more than 14 years.

Detective Danny Reyes investigates the 1990 murder of a Fort Worth, Texas woman.

The 1988 rape and murder of a California woman; a jailhouse snitch.

Young girls are sexually assaulted while waiting for their school buses; in 1991, a 9-year-old girl disappears from her home and is found murdered.

Police in Albany, N.Y., get a surprise when a killer they think targets only older women is suspected in the murder of an elderly man; the contents of a secret storage shed hold the clues to a murder that has gone cold for more than 14 years.

DNA evidence solves the murder of a female law student; a man confesses to the random killing of a bowhunter.

A 25-year-old woman is killed in a hotel room in 1978; a 25-year-old woman is shot to death during a jewelry-store robbery in 1980.

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A pregnant woman is abducted, raped and left to die; a man faces freezing to death after a plane crash; a man must play dead to fight for his life.

A pregnant woman is attacked by her neighbor; a young girl is abducted and held captive; a hiker spends three days crawling down a mountain after breaking his ankle.

A woman is brutally assaulted then set on fire by her attacker; a man is forced to amputate part of his leg after it is caught in a drive shaft; an act of kindness backfires on a motorist.

A woman is raped, shot three times and left for dead; a man is caught in a blizzard that threatens to bury him alive; two boys survive a plane crash.

Chaos erupts at a high-school football game when shots are fired and a teenager is wounded; Mayville and Stokes investigate multiple bomb threats in the neighborhood of Ybor City; the ROC Squad chases a teen on a joyride with his parents' car.

EMTs deal with strange calls on the night of a full moon; two fleet-footed police officers maintain their perfect record in running down suspects; a fire chief faces his fear of rats.

Police officers Victor and Lejon join a SWAT team operation hunting a homicide suspect; the fire department tries to save a man who fell into the Mississippi River.

New partners Arkady and Tom search for a victim who vanished in a river; a motorcyclist suffers serious injuries in an accident; a pedicab driver hurts his leg; a drug dealer hides out in a dangerous neighborhood.

A woman stands to lose her arm following a bloody barroom brawl; a first responder is attacked while he attempts to provide aid at the scene of a car accident; a teenage bike thief receives some tough love.

When 31-year-old real estate appraiser Mike Williams mysteriously vanishes while duck hunting in the Florida swamps in December of 2000, authorities suspect he accidentally drowned.

The murder of two grandparents tears a family apart; two decades later, a detective races to solve the cold case that has haunted him since he was a child.

When 25-year-old schoolteacher Christy Mirack is found brutally murdered in her Lancaster, Pa., apartment in 1992, there is no shortage of suspects.

In the 1980s, within South Central La., a serial killer preys on and attacks women, discarding their bodies in the street; detectives are assigned to the case, but struggle to pin any suspects as the case starts to go cold.

In 1980s Los Angeles, a killer is terrorizing South Central, murdering African American women and discarding their bodies in the street; as the victim count rises, fear and anger take hold in a community often overlooked by the police.

Twenty-three-year-old teacher Irene Garza is a former beauty queen and devout Catholic who vanishes the evening before Easter; residents of her close-knit border town do their best to locate her, but her body is found floating in a drainage canal.

When a beloved schoolteacher is found murdered in her Neptune, N.J., apartment in the fall of 2009, suspicion is cast on her soon-to-be ex-husband.

In the 1980s, within South Central La., a serial killer preys on and attacks women, discarding their bodies in the street; detectives are assigned to the case, but struggle to pin any suspects as the case starts to go cold.

In 1980s Los Angeles, a killer is terrorizing South Central, murdering African American women and discarding their bodies in the street; as the victim count rises, fear and anger take hold in a community often overlooked by the police.

Twenty-three-year-old teacher Irene Garza is a former beauty queen and devout Catholic who vanishes the evening before Easter; residents of her close-knit border town do their best to locate her, but her body is found floating in a drainage canal.

When a beloved schoolteacher is found murdered in her Neptune, N.J., apartment in the fall of 2009, suspicion is cast on her soon-to-be ex-husband.

The murder of two grandparents tears a family apart; two decades later, a detective races to solve the cold case that has haunted him since he was a child.

When 25-year-old schoolteacher Christy Mirack is found brutally murdered in her Lancaster, Pa., apartment in 1992, there is no shortage of suspects.

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Wounded Warrior Project is changing the way our nation cares for veterans and helping them thrive for a lifetime. Join Trace Adkins and Dan Nevins to learn about the journeys of four injured veterans and how no warrior is left behind.

Detectives in Great Falls, Mont., investigate the grisly stabbing death of a former corrections officer; the killer reveals his thoughts behind the crime.

Levi King kills two Missouri residents in 2005, then travels to the Texas Panhandle to continue his murderous ways.

Investigators have no witnesses or evidence in a murder case until a career criminal in California makes a sudden confession that turns out to be less than truthful.

Detectives hunt for person who shot a young man in Alamogordo, N.M, and left his body on a mountain trail; the killer recalls his crime and shares a shocking revelation about his past.

Maksim Gelman embarks upon a 28-hour killing spree through New York City in February 2011, leaving four people dead and others injured.

A "push-button killer" who served time for stabbing a woman unleashes his hidden rage on a new girlfriend.

A drifter embarks on a spree of violent murders stretching from Maryland to Florida before he is finally apprehended in 1994.

An acquaintance of Carolina Panthers wide receiver Rae Carruth is hired to murder the football player's pregnant girlfriend in November 1999.

A Missouri man kills two people at a friend's home, then continues the bloodshed when authorities come looking for him.

Paul Dennis Reid Jr., a country-star wannabe, spends nights robbing fast food joints and killing innocent workers; Jose Ramirez Gonzalez recounts the night he faced off with Reid in a stock room and managed to survive.

Seventeen-year-old Lisa McVey Noland is abducted while biking home from her job working the night shift at a local Tampa donut shop.

In 1992, 19-year-old Fabienne Witherspoon tries to help a man who was down on his luck when he attacked her in her own home; she wages a physical and psychological war against the man who tries to kill her and helps police apprehend Tommy Lynn Sells.

In September 1975, 14-year-old David McVicker is abducted while hitchhiking home from a friend's house in Garden Grove, Calif.; his assailant, William Bonin, has an appetite for assaulting young men and boys.

Tiffany recalls in her own words how she used her quick wit and drive to manipulate her would-be killer into unwittingly granting her a chance to escape his deadly clutches.