For decades, law enforcement officers in Sunnyvale,California, were haunted by the brutal murders of two youngwomen: 18-year-old Estella Mena and 15-year-old Karen Stitt.Their bodies were discovered with multiple stab wounds. Theirmurders, which happened a few years apart, went unsolved foryears until one local detective took on the cold cases.Detective Matt Hutchison grew up in the same neighborhood wherethe young girls' bodies were found. He began investigatingtheir murders, and his department became early adopters offorensic genetic genealogy just as breakthrough technologystarted gaining widespread attention. Using grit, disguisesand cutting-edge forensics, Detective Hutchison's relentlesspursuit ultimately led him and his partner to the killers.
