1980 "sweethearts" crime scene video a first for Sacramento Sheriff's Dept.

      |When teens John Riggins and Sabrina Gonsalves were murdered in December 1980, the case marked the first time the Sacramento Sheriff's Dept. videotaped a crime scene. Carol Daly, then one of only a handful of female homicide detectives on the force, was behind the camera. Watch the season premiere of "48 Hours: The Sweetheart Murders", Saturday at 10/9c on CBS.