: During the ensuing shootout, both Willis and Dupre are critically wounded.

: Mulder's theory is bolstered by subtle changes: the previously right-handed Willis begins using his left hand (Dupre's dominant hand), forgets Scully’s birthday (which he normally shares), and develops a sudden tattoo that mimics Dupre's.

: Agent Jack Willis —Scully's former boyfriend—and Agent Dana Scully conduct a stakeout at a bank expecting a robbery by a pair of married outlaws, Warren Dupre and Lula Phillips .

: The episode ends tragically as Willis (under Dupre's control) dies of a diabetic coma after consuming too much sugar, unaware of Willis's medical condition. Episode Details Original Air Date : February 4, 1994. Directed by : David Nutter . Written by : Howard Gordon and Alex Gansa.