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

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.