Former Robin Jason Todd parted ways with the Batman over their vastly different approaches to crimefighting, eventually founding his own team, the Outlaws.
Death can be a strange thing for superheroes, especially when it doesn’t quite stick. Just ask Jason Todd. As Batman’s second Robin, Jason died at the hands of the Joker when he was just a child. But he returned to life with the help of a Lazarus Pit and the literal warping of time and reality.