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

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.

Paid programming.

Cardiologist Dr. Ernst von Schwarz, M.D. shows how to manage your blood pressure naturally and help protect your heart for life with My Best Heart.

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.

Paid programming.

A college student is found murdered in a residential neighborhood; as police search for the truth, they are stunned to learn that one of their own might be involved.

When a complicated Texas love triangle ends in murder, a pink gun leads to an arrest, until new evidence prompts investigators to rethink the case.

Years after a woman is murdered in the back of her comic book store, new evidence is discovered that sends the investigation in a surprising direction.

The murder of former NBA star and hometown hero Lorenzen Wright sends shockwaves through the city of Memphis, Tenn.; insiders speak out about new developments in the lengthy search for justice.

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

After police discover the burned body of a missing Miami man at the edge of the Florida Everglades, the wife of a local supermarket mogul comes forward to reveal a shocking secret and possible lead.

Hollywood actress Asha Davis' sister, Lesley, goes missing after a fight with her husband never to be heard from again.

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.

A former ballerina shoots her husband in what she alleges was an act of self-defense; the ensuing investigation and dramatic trial spark protests and receives national attention.

Paid programming.

Paid programming.