A genealogy website helps crack another cold case, police say, this one a 1987 double homicide

For the past 30 years, evidence found at the scenes of the killings of Jay Cook and Tanya Van Cuylenborg was mostly confined to a blue blanket wrapped around Cook’s body, an abandoned bronze 1977 Ford Club Wagon and, crucially, the killer’s DNA.
The couple was from Saanich, British Columbia, and on the evening of Nov. 18, 1987, they were traveling in the Cook family van to Gensco Heating in Seattle to pick up a part for Cook’s father. They were last seen purchasing a ticket around 10 p.m. in Bremerton, Wash., to board a ferry to Seattle, but they never made it there. Several days later, 18-year-old Van Cuylenborg’s body was found partly clothed, dumped in a ditch in a wooded area in Skagit County, Wash. She had been raped, police said. Cook’s body was found near the Snoqualmie River.
Since 1987, police had received more than 300 names from tipsters who thought they had information about the couple’s alleged killer. William Earl Talbott II was not on that list.
But then investigators ran the DNA from the scene through a genealogy website. They turned up two second cousins of Talbott, which led them to him.