In the fall of 1987, a young Canadian couple set off from their hometown of Saanich, British Columbia to run a few errands in Seattle. They never made it there; police found their bodies a few days later near Bellingham, Washington. Jay Cook had been beaten and strangled. His girlfriend, Tanya Van Cuylenborg, had been raped and shot in the head. For more than 30 years their families held out hope that police would one day find the killer.