Deadly Knowledge

Deadly Knowledge refers to episode 19 of the Season 5 of the television series Forensic Files which was broadcast for the first time on January 16, 2001.

Plot summary
In 1995 in Farmington Hills, Michigan when 23-year-old college co-ed Tina Biggar goes missing, her boyfriend and family fear that she has been murdered. A police investigation reveals details about her past that no one, not even her closest friends, suspected: She was a student by day and a $100-an-hour call-girl by night.

Her many clients were all suspects in her disappearance, as was her boyfriend. But when her body is discovered two weeks after her disappearance, police obtain evidence that reveals that her killer was former client Kenneth Ray Tranchida, as well as more details about her bizarre double-life and its tragic consequences.