THE FOREVER WITNESS: How DNA and Genealogy Solved a Cold Case Double Murder

In 1987, a young couple on an overnight trip to Seattle vanished. A week later, the bodies of Tanya Van Cuylenborg and her boyfriend Jay Cook were found in rural Washington. A relentless detective and an amateur genealogist solve this haunting cold case, launching a crime-fighting revolution that tests the fragile line between justice and privacy.