Cold Case Files Season 3 Episode 20 2001

Cold Case Files Season 3 Episode 20: A man suspected of the cold case murder of his wife and son hatches a new plot to kill his mother and father; and detectives solve the 20-year-old murder of a teenager by tricking her killer into licking an envelope, then extracting DNA from the saliva.
- Aired:May 14, 2001
- Seasons:5 · Episodes:128
- Country:United States of America
- Network:A&E












