[Jason anticipated the question. It's only natural this Bruce would ask and Jason's not mad at that. This Bruce doesn't know. He needs to know. But Jason's expression hardens and his hands ball tight into fists anyway]

Because he tortured and murdered me. I came back only because of someone else. December 21st was when it happened. He wanted to let us know that he's still around and still remembers too. Happy anniversary and all that shit.