Cold Case Files

Season 1, Episode 22

Episode Title: Silent Witness/Innocence Lost

Air Date: 1999-05-21

Overview:

The murder of scientist Helena Greenwood, who was helping to develop DNA forensic technology when she died, is solved 12 years later with the help of DNA evidence. And a Los Angeles County prosecutor uses criminal profiling to nab the notorious South Bay Rapist, who abducted and raped six young girls.