What Happened To Everyone Who Joined The Batman Family?

Tim Drake was highly intelligent. When he was nine he recognized a fighting move he saw Dick Grayson perform as identical to an acrobatic manoeuvre he did with the circus. Tim then linked Robin to Bruce Wayne as Batman.

Tim recognized that recently Batman had become increasingly violent. After meeting Alfred and Dick, they told of Jason's death and Tim offered to be Robin, reminding Bruce that he needed a sidekick to balance him.

Bruce agreed on the condition that Tim become highly competent at combat, and after training around the world, Tim joined Bruce as the third Robin. Tim grew into an excellent tactician and detective, and by the time that Batman 'died' during Infinite Crisis, Tim struck out on his own as Red Robin, searching the world for Bruce, who Tim was convinced was alive.

Tim is currently exploring alternate timelines with members of Young Justice, briefly going by the title of 'Drake' before switching back to Robin shortly after.