Forensic Files - Season 7 - Eps 17: Chief Evidence
The 1996 Seattle murder of suburban couple Raquel Rivera and Jay Johnson is detailed. Investigators first believe the slayings were the result of a drug deal gone bad. However, no drugs are found in the house and the victims' blood isn't present on the clothing of the suspects. Evidence from the couple's dog Chief, who was also killed, eventually ties one of the murderers to the scene. This is one of the first cases where dog DNA was used to convict.
About Forensic Files

Title: Forensic Files
First Air Date: 1996-04-21
Last Air Date: 2011-06-17
Status: Ended
Rating: 7.9/10 (from 74 votes)
Language: EN
Seasons: 15
Total Episodes: 400
Network: TLC truTV Court TV
Genres: Crime, Documentary
Production Companies: Medstar Television
Synopsis
Real crimes, disease outbreaks and accidents around the world are solved by experts using scientific laboratory analysis which helps them find previously undetectable evidence. Brilliant scientific work helps convict the guilty and free the innocent.
Cast

Peter Thomas
Self - Narrator (voice)