In the "Titans Tomorrow" story arc during writer Geoff Johns' run on Teen Titans, Robin and the rest of the team encounter future versions of themselves from a time after all of their mentors have been killed. As a brutal new Batman, Tim Drake personally hunted down every member of his mentor's Rogues Gallery, turning Arkham Asylum into a cemetery filled with the graves of the original Batman's enemies, whom Tim killed using the same pistol that Joe Chill used to murder Thomas and Martha Wayne when Bruce was a child. Tim had difficulty accepting that he could ever adopt such brutal methods as the direct successor to Batman, who always maintained a strict policy against murder.