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

In 1983, 22-year-old Diana Hanson leaves her family's home for a jog and is never seen alive again.

In 1967, Susan Galvin is found dead; the case is reopened with the help of forensic genealogy in 2018.

A woman is found dead inside a cemetery in 1996.

DNA and genealogy reveal serial killer Jerry McFadden murdered Anna Hlavka in 1979 in Portland; featuring witness testimony, new interviews, archive footage and dramatic reconstructions.