The missing-persons case of 12-year-old Jonelle Matthews in Colorado remained a mystery for more than three decades until detectives narrowed in on a suspect whose bizarre behavior after her disappearance hinted at something much more sinister.
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As detectives investigate a mother of two's sudden disappearance, her friends and family reveal she feared she was being stalked.
A risky undercover operation in a rough prison could expose a suspected serial killer's secrets.
Twenty-seven-year-old Egypt Covington is found murdered in her home investigators in Michigan quickly identify a person of interest, but years pass without an arrest.
An Idaho man is sentenced to life after falsely confessing to his friend's murder but after the true culprit is caught and the case seemingly closed, a chilling twist unfolds.
The missing-persons case of 12-year-old Jonelle Matthews in Colorado remained a mystery for more than three decades until detectives narrowed in on a suspect whose bizarre behavior after her disappearance hinted at something much more sinister.
When former Sen. Linda Collins of Arkansas is found fatally stabbed outside her home, detectives investigate if her murder is connected to her political career or her personal life the victim's children speak out about the case.
When a pediatric dentist is found dead, police uncover a complex plot and their suspect leads investigators on an international manhunt the lead detective speaks out for the first time.
Detectives find a message written in blood during a murder investigation.
A father is accused of stealing money from his children's trust funds and murdering his ex-wife to cover up his crimes.
A thump heard by the children in a Carlsbad, Calif., home one summer morning is the first clue in a shocking mystery involving family secrets.
When a woman is found murdered in her bed, her husband and her son accuse each other of being the killer.
A tight-knit Long Island family go to extraordinary lengths to find their missing sister.
A successful businesswoman and mother of three is found shot in her office the investigation into her death leaves a family divided.
A microscopic clue and a stroke of luck help authorities solve the murder of a young woman that took place inside her Jacksonville Beach, Fla., home.
The remains of 11 female bodies are found in the desert outside of Albuquerque, N.M.
Mysterious deaths occur inside a traveling commune, starting an investigation that lasts more than a decade two sisters -- former commune members -- reveal stories that involve lies, lust and greed.
Years after a Montana man is found dead, his son opens up a box of case files to find out what really happened.
A woman is found murdered after her close friend hears her screaming on the phone the mysterious death of her boyfriend's twin brother leads investigators to a suspect.
After a plastic surgeon and local musician is murdered in his Asheville, N.C., home, investigators uncover a trail of clues pointing to an unlikely killer new details emerge from exclusive TV interviews with insiders close to the case.
The murder of a young schoolteacher in Pennsylvania goes unsolved for years, but investigators discover a new tool that may finally help unlock the murderer's identity.
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