Click here to watch great FREE Movies & TV: http://www.filmrise.com The murder of couple Raquel Rivera & Jay Johnson was first believed to be 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 eventually ties one of the murderers to the scene. This is one of the first cases where dog DNA was used. Originally aired as Season 7, Episode 17.