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

Sylvia Quayle is murdered in her Colorado home; four decades later, science brings her killer to justice.

A case of an unidentified body and a child abduction from the 1960s may be more connected than police thought.

In Las Vegas, 1989, 14-year-old Stephanie Isaacson is raped and murdered.

When Mary Scott is found murdered in her San Diego home, an investigation is opened that will last 51 years.