Green Lantern #40 (May 1993) by DC Comics
"A Flash of Evil!" Guest-starring Darkstar (Colos Ferrin). Story by Gerard Jones and Joe Filice. Art by Claude ST. Aubin and Romeo Tanghal. Hal is surprised to find that his old pal Barry Allen, the Silver Age Flash, has apparently returned from the dead. But his actions are less than civil. If Green Lantern is unwilling to stop this seemingly evil Flash, then his rival, Darkstar, will - permanently.