Declared clinically dead, Jack Willis (Christopher Allport), Scully's former boyfriend and a fellow FBI agent, is revived on the operating table. While in a state of limbo, Willis' consciousness was taken over by the bank robber whom he has just killed in a shoot-out. As is often the case, Scully refuses to believe that this metamorphosis has taken place, but Mulder is convinced that Jack Willis is no longer the real Jack Willis. "Lazarus" was written by Alex Gansa and Howard Gordon. The episode first aired February 4, 1994. ~ Hal Erickson, Rovi