Publication history of Dick Grayson leadership of the Titans to Wonder Girl, and takes a leave of absence from the team. In pre-"Crisis on Infinite Earths" continuity, the maturing Dick Grayson grows weary of his role as Batman's young sidekick. He renames himself Nightwing, recalling his adventure in the Kryptonian city of Kandor, where he and Batman meet the local hero of the same name. "Nightwing: Secret Files & Origins" #1 and "Nightwing: Year One" tell the full post-Crisis version of how Dick Grayson gives up his identity as Robin (having been "fired" by Batman). Uncertain what to do with his new-found independence, Dick considers
Dick Grayson He then revealed that he has been waiting a long time to kill both Dick and Bruce. He then unmasked Moonwing and accused him and Bruce of abandoning him. He then began strangling Dick, but before he could kill him Colonel Nick Fury and Sergeant Joe Rock commandeered an aircraft and shot Deathlok several times in the back. Despite feeling sorry for Jason, Dick left Jason to die again so he could continue the attack on the HYDRA base. In the Elseworlds mini-series "Kingdom Come," a middle-aged Dick Grayson reclaims the Robin mantle as Red Robin and takeover his mentor's