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

In 1972, a young woman is found covered in blood by the road in Snohomish County, WA.

In 1980, an Ohio man finds his wife lying in a pool of blood after she had been stabbed by an unknown killer.

In 1985, when a young nurse is sexually assaulted by an unknown assailant, she turns to law enforcement to catch this sexual predator; despite her horrific ordeal, she never loses hope that her attacker will be caught.

In 1985, student Terri McAdams was beaten and killed by an intruder who entered the apartment she was staying in; in 2024, genetic genealogy finally caught Terri's killer.