In the 1970s, a serial killer in Western Canada left the bodies of four young women in different locations, all showing signs of sexual assault and strangulation. After nearly 50 years, Canadian police identified the killer as Gary Allen Srery, who had fled to Canada while facing rape charges in the United States. Despite his brazenness, the investigation dragged on for decades until DNA evidence and genetic genealogy linked Srery to the killings. The police suspect he may have committed more murders, and his transient lifestyle and violent history support this. Although Srery is deceased, the police provided detailed findings to the victims' relatives. This case highlights the power of genetic genealogy in solving cold cases, but its limited availability in Canada is a challenge.