EXALT writes...

I have a couple questions about your version of the Joker...
1)Usually, the origin of the Joker is a mistery to anyone, including himself. But you said that you create backstories pretty much for all your characters, even if you don't necessarely put them in the show. So, the question is: have you created an origin for the YJ Joker, or did you just stick with the "total mistery" thing (of course, if you DID create an origin, I'm not asking you to spoil it here).
2)In Revelation, the Joker claims to have multiple personalities. Was that a reference to his multiple origins?