20/20 Season 48 Episode 37 I'm Going to Get You

In August of 1996, Debbie Dorian, a 22-year-old Fresno State student, was found dead in her apartment with her eyes, nose and mouth covered with duct tape. While authorities searched for the perpetrator of this horrific crime, an early DNA test led them to arrest someone, but just two weeks later, a more advanced DNA test proved he was not the man responsible. Then, a string of sexual assaults leads to new evidence pointing to the killer. Despite over 100 possible leads, Debbie's case went unsolved for over two decades.