Hey! Thank you for the kind comment.
As for the J, you should watch the cutscenes from the game "Arkham Knight." It deviates a lot from the original comic but there are similarities that result in Red Hood. I don't want to spoil details for anyone who hasn't played or wants to watch.
Okay. :) I'll have to go look up the cut scenes on YouTube then. I don't know if I'll ever get around to playing the game, but the way they make the cut scenes anymore, it's almost like watching a CGI movie. Some of it is even motion capture, though I think they've got a ways to go with that still.