I guess that was me? Here's how I guessed when you posted on lj...
Q: What did he say about me? A: It's a gift that keeps on taking. It's a theft that keeps on giving. M: You were his child and he loved you, but he did not want to be a father. You spoiled his plans, but you tried to get him to take the right path.
Q: Why do you believe he felt he had to leave clues at his crimes? A: One bug is wrapped in a web, therein to die. Another bug is wrapped in it's own web, there to be reborn. M: I leave riddles because I must and it has been my downfall. Arthur imitated me in order to become something more than he was.
Q: Did he ever talk about someone who hurt me? Or mention the name Murray? A: There is a dog in a manger, it cannot subsist on hay. M: The dog can't eat hay, but it won't let anyone else eat it either. Someone is not trying to hurt you, but preventing you from getting what he can't have for himself.
Q: Do you think he wanted to give up crime? A: What day of the week has no man ever lived to see? M: The next day. Arthur did want to give up crime, but always after the next job.
Q: Did he want to stop? A: The tiger envies the ox but understands only its -- horns. M: Again, Arthur did want to stop. But he would not have, even after facing punishment.
Q: One straight answer and I'll leave. A: I... I... I am the number you can't count on your fingers. M: Zero. I want to help you, but I am incapable of giving straight answers.