1. He is very self conscious about his body because of his scars, that's why he only wears long sleeve button ups
2. He trained himself to be able to write with both hands and to shoot with both hands.
3. He was called the Black Plague when he was younger because its said everything he touches dies
4. He attended Gotham High School when he got back to Gotham
5. He was stabbed by his best friend Tom