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

In 1974, a 5-year-old girl disappears while walking to her friend's house; 46 years later, detectives are able to put the case to rest using modern DNA technology.

In 1997, a woman is attacked on her route home; a suspect is arrested over 20 years later with the help of a genetic genealogical search.

A young woman out jogging is attacked and raped at knifepoint; the perpetrator continues his reign of terror by raping another five times over the next nine years.

In 1981 a young woman is found murdered on the side of the road; who killed her remains a mystery for decades until law enforcement can utilize genetic genealogy to crack the case.