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In 1983, 22-year-old Diana Hanson leaves her family's home for a jog and is never seen alive again.

A woman is found dead inside a cemetery in 1996.

In 1960, the police and community are heartbroken by the murder of a little girl.

In 1981, police are shocked by the violent murder of a 35-year-old woman inside her home in an affluent town.

In 1960, the police and community are heartbroken by the murder of a little girl.

In 1981, police are shocked by the violent murder of a 35-year-old woman inside her home in an affluent town.

At Oak Street Health, our doctors take the time to get to know you and your needs. We can help you get the most out of your Medicare coverage, set up mail-order prescriptions, and coordinate healthcare & social services. VISITOAKSTREETHEALTH.COM.

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The discovery of an Army captain's death in her El Paso, Texas, home shakes her tight-knit military community.

Detectives suspect an inside job when a coin collector and his wife are found dead in their home with no sign of forced entry or evidence of theft.

Against all odds, a young woman is found alive after an attack on her and a friend near Corpus Christi, Texas.

An in-depth look at a series of mysteries including Johnny Lee Wilson, Tatum's Ghost, Badlands and Daredevil Doe.

Reporter's Trucker; Past Lives; Conway; Doggie Doctor; I.D. Swap.

Campus Murder Expose; Last P.O.W. (Parts 1 & 2); Go Ask Alice; Update: Sweetheart Swindler; Update: Reincarnation.

Starfyre Fugitive; Mother/Son Murder; Fatima (Parts 1& 2); Update: Lucky Lost Love; Lady Killer.

Christmas Party Murder; Myrtles Plantation; California Killing; Asteroids & Meteors; Brief Encounter; Pick Ax.

G.I. Guinea Pig; Bank Tunnel; Murder in the Park; Noreen Renier; Unknown Dad.

Maloney's Mickey; Picture Kristen Gone; Coma Comeback; Update: Foster Son; Police Woman Savior; Mystery Cowboy.

Miami Vice; Zel's Odyssey; Missing Rock Star; Image of Guadalupe; Update: Viet Pilot's Daughter; Drunk Driver.

Russian Roulette; Anthrax; Friendly Ghost; Update: Vanished in the Heartland; Scare Tactics.

Fugitive R.N.; Witness for the Prosecution; Doris Duke; Update: NY State Serial Rapist; Gone Fishing; Miracle Child.

Road Map Clues; Past Phone Calls; Miracle Cross; She Finds Fugitives; Phone Call Sister.

Singles Bar; Mary Celeste; Drug Playboy; Update: Coffee Pot Twins; Lost Gause; Update: Li'l Miss; Mystery Baby.

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In 1960, the police and community are heartbroken by the murder of a little girl.

In 1981, police are shocked by the violent murder of a 35-year-old woman inside her home in an affluent town.

The body of a young woman is discovered the day after Valentine's Day in 1991.

When two children are murdered in 1986 in Tacoma, Wash., panic spreads throughout the community.

The body of a young woman is discovered the day after Valentine's Day in 1991.

When two children are murdered in 1986 in Tacoma, Wash., panic spreads throughout the community.

At Oak Street Health, our doctors take the time to get to know you and your needs. We can help you get the most out of your Medicare coverage, set up mail-order prescriptions, and coordinate healthcare & social services. VISITOAKSTREETHEALTH.COM.

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A woman accused of attempting to hire a hit man to kill her husband.

The drug-related death of a 17-year-old girl sheds light on a new class of synthetic drugs that has law enforcement agencies on alert.

After shedding hundreds of pounds, a popular kindergarten teacher goes missing; investigators find a link between her weight loss and her disappearance.

Gallup Abduction; Fatal Revision (Parts 1, 2 and 3); Wrong Grave.

Twice Burned; Elvis; The Twinless Twin; Where Is Wanda Jean?; Short Walk Home; Rapist MD; Molnar Heir.

Down & Out; Honeymoon Bones; Return From Heaven; Sal and Sally; Women in the Bay; Stahl's Paintings.

Slain Swain; Goldie's Girl; James Van Praagh Parts 1 and 2; Thanks Big Brother; Fugitive Counterfeiter.

Featuring Nashville Hit, Padre Pio Parts 1 and 2, Mystery Clerk, Sharon's Search, and an update on Who Saved My Life.

A look back at the 1997 murder of fashion designer Gianni Versace, including interviews with his long-time partner Antonio D'Amico, model Beverly Johnson, fashion journalist Hal Rubenstein, author Maureen Orth and more.

A man dies in a shooting incident after tempers flare in a confrontation in Montana's Glacier National Park.

Motivational speaker Rebecca Musser talks about her life in The Fundamentalist Church of Jesus Christ of Latter-day Saints and what made her leave the denomination.

A pilot flees following a plane crash, becomes a fugitive and lives a double life for decades.

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The body of a young woman is discovered the day after Valentine's Day in 1991.

When two children are murdered in 1986 in Tacoma, Wash., panic spreads throughout the community.

When a Naval recruit is found murdered, a decades-long mystery reveals the identity of the killer.

Police work for 52 years to find the killer who murdered a woman in1969.

When a Naval recruit is found murdered, a decades-long mystery reveals the identity of the killer.

Police work for 52 years to find the killer who murdered a woman in1969.

Save thousands on car repairs.

At Oak Street Health, our doctors take the time to get to know you and your needs. We can help you get the most out of your Medicare coverage, set up mail-order prescriptions, and coordinate healthcare & social services. VISITOAKSTREETHEALTH.COM.

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An investigation of a woman found murdered in Fort Worth, Texas.

When a woman is found murdered in her bed, her husband and her son accuse each other of being the killer.

The morning after a cast party, 19-year-old musician and actress Jessie Blodgett is found strangled to death in her bed.

Chad; Family Man Fugitive; Agatha Christie (Parts 1 & 2); Fritz and the Soldiers.

Bomb Throwing Fugitive; Paisley Hat; Mrs. Millionaire; Kyra's Crisis; Shack Fire.

Vice Cop; Searching for Morgan; Sign From Heaven; Pizza Bandits; Lucie's Last Fare; Loving's Lost Love.

Priest Killer; Chicago Kidnap; Brinks; QI Gong; Update: Ready Teller Robbery; Such is Life.

Diaz Dog Days: Part 1 and 2; Murder by Arson; Baby Broker; Lost Sailor.

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

A Georgia couple's romantic tryst takes a deadly turn, leaving investigators stumped -- until tire treads at the scene and cell phone calls reveal a twisted plot.

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

Gallup Abduction; Fatal Revision (Parts 1, 2 and 3); Wrong Grave.

Twice Burned; Elvis; The Twinless Twin; Where Is Wanda Jean?; Short Walk Home; Rapist MD; Molnar Heir.

A mystery in paradise unfolds when Sarm Heslop vanishes from her boyfriend's luxury yacht in the U.S. Virgin Islands; chilling details emerge on the case that made international headlines and left investigators with more questions than answers.

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When a Naval recruit is found murdered, a decades-long mystery reveals the identity of the killer.

Police work for 52 years to find the killer who murdered a woman in1969.

In 1989, a Las Vegas teenager on her way to school is never seen alive again.

Police work to identify the perpetrator of a brutal 1985 murder.

In 1989, a Las Vegas teenager on her way to school is never seen alive again.

Police work to identify the perpetrator of a brutal 1985 murder.

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A young art student from Texas is found murdered in her bed with no sign of forced entry, indicating that she knew her killer.

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

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

When a mother of four dies unexpectedly on Valentine's Day, her death is attributed to natural causes, but a detective suspects that someone murdered the woman.

Susie Casey, an outgoing mother of four, is going through a divorce when she vanishes; police investigate three men.

When a young mother disappears after leaving her infant in the care of her local pastor and his wife, Florida detectives search for her for five years, uncovering a web of secrets and lies.

When a South Carolina coroner arrives at the scene of a car accident to find his friend deceased, he notices some unusual markings on her face and begins to think her death looks suspicious.

Down & Out; Honeymoon Bones; Return From Heaven; Sal and Sally; Women in the Bay; Stahl's Paintings.

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

When Nichole Payne and her son Taylor are found dead in their home, it takes nearly a decade to unravel what happened; now, Nichole's children share what they saw the day their mother and brother were murdered.

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In 1989, a Las Vegas teenager on her way to school is never seen alive again.

Police work to identify the perpetrator of a brutal 1985 murder.

A young woman is found murdered in 1987.

A town in Washington lives in fear after a 17-year-old girl is abducted and raped without a suspect in sight.

A young woman is found murdered in 1987.

A town in Washington lives in fear after a 17-year-old girl is abducted and raped without a suspect in sight.

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A man convicted of murdering a woman in her upscale Austin, Texas, home tells his story for the first time.

Rachel Buffett, whose former fiance, Daniel Wozniak, was convicted of two grisly murders, talks about being at the center of the investigation.

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

A California woman's two former husbands are mysteriously murdered, nearly 20 years apart.

A double homicide in upstate New York leads detectives on a cross-country investigation to piece together a case with a surprising suspect at the center.

Chad; Family Man Fugitive; Agatha Christie (Parts 1 & 2); Fritz and the Soldiers.

Bomb Throwing Fugitive; Paisley Hat; Mrs. Millionaire; Kyra's Crisis; Shack Fire.

Vice Cop; Searching for Morgan; Sign From Heaven; Pizza Bandits; Lucie's Last Fare; Loving's Lost Love.

Priest Killer; Chicago Kidnap; Brinks; QI Gong; Update: Ready Teller Robbery; Such is Life.

Diaz Dog Days: Part 1 and 2; Murder by Arson; Baby Broker; Lost Sailor.

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A young woman is found murdered in 1987.

A town in Washington lives in fear after a 17-year-old girl is abducted and raped without a suspect in sight.

For six decades, police work to identify the person who murdered a 9-year-old girl.

Police spend decades trying to identify a baby whose body was discovered in 1982.

For six decades, police work to identify the person who murdered a 9-year-old girl.

Police spend decades trying to identify a baby whose body was discovered in 1982.

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When a father goes missing and his body is found in a field several miles away, the investigation reveals multiple suspects -- including members of his own family.

An Idaho woman's affair with her married boss leads to a lethal confrontation.

The mystery of a Florida hotel owner's disappearance confounds family, friends and the detectives investigating the case.

Donald Eugene Webb; Internet Abduction; Child Prodigies; Fatal Obsession; Update: Surprise Sister; Oregon Heir.

Repairman Death; Hero Molester; White Bird; Heads Up; Update on Mary and Martha; Nazi's Lazarus.

Kay Hall; Mail Bombings; Trish's Miracle; Powers of Katie; Best Friends.

Motorcycle Murder; Amber Swartz; Carlos' Con; Maine Petition; Message in a Bottle; Foster Son.

R.F. Kennedy Part 1 and 2; Gurdon Light; Tina's Search; Where's Baby Le-Zhan; Doggie Bowser MD.

A woman claims to have been abducted from her multi-million-dollar home, leaving more than 150 investigators to search for her.

A Tennessee resident is murdered in her bedroom; investigators have little evidence and struggle to find answers.

The remains of 11 female bodies are found in the desert outside of Albuquerque, N.M.

A family visit over the holidays ends in tragedy when a man is found dead on the kitchen floor; authorities are faced with twists and turns in the case as new details emerge.

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For six decades, police work to identify the person who murdered a 9-year-old girl.

Police spend decades trying to identify a baby whose body was discovered in 1982.

Police work to identify the perpetrator of a brutal murder from 1980.

For 15 years, northern California is haunted by a serial rapist until genetic genealogy finally reveals the identity of the elusive sexual predator.

Police work to identify the perpetrator of a brutal murder from 1980.

For 15 years, northern California is haunted by a serial rapist until genetic genealogy finally reveals the identity of the elusive sexual predator.

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Paid programming.

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A thump heard by the children in a Carlsbad, Calif., home is the first clue to a shocking mystery that involves some family secrets.

A detective comes face to face with a serial killer when she promises to get justice for the mother of a victim whose body turns up at an Anaheim trash facility.

A woman continues searching for answers after the investigation into her daughter's murder goes cold.

Featuring Who Killed Jeanine Parts 1 and 2, Animal Saviours, Bus Stop Amnesia, Point Blank, Miriam's Memory.

Murder in Agawam; Murdered Mom; Missing Baby; Dropped Off Doe; Hotel Balcony Death; She Sold Babies; Genius Mystery.

An in-depth look at the mysteries of Mental Daze, Motorcycle Mom, Beale's Cypher, Looking for Angeline and Gasparetto.

Honeymoon Isle; Little Girl Lost; Bible Code; Update: Molester Cop; Bee Sting Healing; Surprise Sister.

Born to Kill; Carnies; Children's Past Lives; Update: I.D. Swap; Sadd Fugitive; Nine Lives.

Secrets emerge and a family is torn apart when a cop's wife is shot to death in her bed.

In Mustang, Okla., firefighter Keith Bryan reconciles with his wife, then he is shot in his own home and dies a few hours later at a nearby hospital.

A similar abduction in New Mexico helps crack the case of a 19-year-old missing college student in Oregon.

The children of an Oklahoma pastor survive the robbery that took their parents' lives and observe the trials of those accused of committing the crime.

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Police work to identify the perpetrator of a brutal murder from 1980.

For 15 years, northern California is haunted by a serial rapist until genetic genealogy finally reveals the identity of the elusive sexual predator.

In 1976, a 16-year-old girl is found murdered near a roadside ditch in the small town of Walton, Ky.

Detectives and forensic experts recount the most extraordinary cold cases that were solved using the revolutionary technique of familial DNA testing.

In 1976, a 16-year-old girl is found murdered near a roadside ditch in the small town of Walton, Ky.

Detectives and forensic experts recount the most extraordinary cold cases that were solved using the revolutionary technique of familial DNA testing.

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When a San Antonio man shoots his wife, he claims to have shot her after mistaking her for an intruder.

Debra Newell believes she has found Mr. Right, but her daughters sense there's something wrong with John Meehan; they start digging into his past and find out he's a dangerous con man; their revelations may come too late.

The mysterious death of a young mother in Ohio and the ensuing investigation that spans years and multiple states.

Picture Taking Fugitive; John Burns; Deputy Death; Honky Tonk Woman; Update: Sharon's Search; Coma Healer.

Colorado Cop Killer; Playboy Con Man; Larry's Rampage; Life After Lightning; Mickey Thompson; Missing Gringo.

Kurt Cobain; Bordello Murders; Update: College Student Murders; Jesse James Hollywood; Profiling the Paranormal; Trucker Disappearance.

Yager Shyster; KC Blast; Abductees: Part 1 and 2; Disappearance in Shoshone.

An in-depth look at a series of unsolved mysteries including Tupac Shakur, Bigfoot II, Update: Noble Brothers Run, Fred's Fatal Drive, Cyril Wecht, and Lost at Sea.

Donald Eugene Webb; Internet Abduction; Child Prodigies; Fatal Obsession; Update: Surprise Sister; Oregon Heir.

Repairman Death; Hero Molester; White Bird; Heads Up; Update on Mary and Martha; Nazi's Lazarus.

Kay Hall; Mail Bombings; Trish's Miracle; Powers of Katie; Best Friends.

Motorcycle Murder; Amber Swartz; Carlos' Con; Maine Petition; Message in a Bottle; Foster Son.

R.F. Kennedy Part 1 and 2; Gurdon Light; Tina's Search; Where's Baby Le-Zhan; Doggie Bowser MD.

Featuring Who Killed Jeanine Parts 1 and 2, Animal Saviours, Bus Stop Amnesia, Point Blank, Miriam's Memory.

Murder in Agawam; Murdered Mom; Missing Baby; Dropped Off Doe; Hotel Balcony Death; She Sold Babies; Genius Mystery.

Paid programming.

Paid programming.

In 1976, a 16-year-old girl is found murdered near a roadside ditch in the small town of Walton, Ky.

Detectives and forensic experts recount the most extraordinary cold cases that were solved using the revolutionary technique of familial DNA testing.

In 2003, the skeletal remains of a young woman are found.

The identity of Nancy Bennallack's murderer is a mystery until the advent of investigative genetic genealogy.

In 2003, the skeletal remains of a young woman are found.

The identity of Nancy Bennallack's murderer is a mystery until the advent of investigative genetic genealogy.

At Oak Street Health, our doctors take the time to get to know you and your needs. We can help you get the most out of your Medicare coverage, set up mail-order prescriptions, and coordinate healthcare & social services. VISITOAKSTREETHEALTH.COM.

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When one woman breaks off her relationship with a boyfriend she says abused and stalked her, he moves on to something even worse.

After losing a hotly contested custody battle, a woman disappears with her 11-month-old daughter; the child's father searches four continents for almost two decades before reaching an emotional conclusion.

The five-year investigation into the death of a retired corrections officer, who was killed by antifreeze poisoning, reveals multiple suspects.

An exploration of the cases of AWOL; Unknown Arsonist; Phoenix UFO; Brandon Lee; Alcatraz.

Texas' Most Wanted; Backyard Bones; Pierre's Amnesia; Bad Friday; Missing Bank Executive; Canadian Crop Circles.

Fugitive Squirrel; Waag the Dog; Mystery Mummy; Vigilante; Who Plugged Bugsy?; Murder in Connecticut.

Elvis' Last Night; Kecksburg UFO (Parts 1 and 2); Update: Casino Cowboy; Dennis Cole's Son; Bad Chief.

Kentucky Bomber; Update: Texas A&M Rapist; Ice Woman; One Minute Million; Taking a Dive; Bordeaux Murder.

When a woman disappears after an encounter on a train, her family hires detectives to investigate.

When film executive Gavin Smith vanishes, Los Angeles detectives search for clues amid reported sightings and suspicious circumstances.

When two women call 911 after hearing someone break into their apartment, their call for help holds the key to solving the mysterious murder of a young graduate student named Katie Sepich.

When a woman is abducted during her evening shift at a gift shop, her family keeps the case in the public eye for decades, until investigators finally solve the mystery.

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In 2003, the skeletal remains of a young woman are found.

The identity of Nancy Bennallack's murderer is a mystery until the advent of investigative genetic genealogy.

Detectives and forensic experts recount the most extraordinary cold cases that were solved using the revolutionary technique of familial DNA testing.

In 1968, the remains of an unidentified woman are discovered; detectives work for nearly half a century to identify the Jane Doe and the murderer who evaded law enforcement for 50 years.

Detectives and forensic experts recount the most extraordinary cold cases that were solved using the revolutionary technique of familial DNA testing.

In 1968, the remains of an unidentified woman are discovered; detectives work for nearly half a century to identify the Jane Doe and the murderer who evaded law enforcement for 50 years.

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A luxury car salesman is asked by a beautiful former client to plan a murder.

A DNA breakthrough in a murder case that is more than a decade old leads two determined detectives to surprising suspects.

A 29-year-old woman goes missing.

Insight into Border Line Murder; Sleepwalking; Searcher's Son; Frightened Family; Dennis Keith Smith.

Bonnie and Clyde 2001; Update: Florida Crime Spree; Storm in Hell; Heather Tallchief; Film Student's Death; Bloodhounds.

Massachusetts Marine; Yeti; Terrorized Teen; Biker and the Vet; Killer Boyfriend.

Texas Crime Spree; Inside Frontera; Deadly Doses; The Entity.

Missing on a Cruise; Taunting Bank Robber; DEA Agent Death; Bullock's Deadwood; Up in Smoke; Danny and His Dad.

As Hurricane Charley ravages a small town in Florida, a man trying to avoid his past hides out in a hotel room.