Synopsis by Hal Erickson
A string of deaths has occurred in rural Texas, with the victims drained of all their blood. Investigating this killing spree, Mulder and Scully come up with two different, contradictory versions of the events surrounding the murders. Both versions reach the same grisly conclusion: Mulder is responsible for the death of local teenager Ronnie Strickland (Patrick Renna) -- a death that may have been entirely unnecessary. First broadcast February 22, 1998, "Bad Blood" was written by Vince Gilligan, and features Luke Wilson in a supporting role as the town's sheriff.