After the Dark Knight

Patient Four, Four, Seven, Nine also known as 'The Joker' has caused the largest damage to Arkham in it's history, time have past since he was brought in here, after the terrorist attack he pulled in Gotham. Since then he has killed many friends, lovers and has dragged people to his level of insanity and even I don't know why he wants me to write this. I don't know why the video tapes are not good enough, I just wish I could go home. He says everything will become clear soon...