Well, we know he deals in child porn, and was convicted for it in CA. Creeps make a lot of money with that sick stuff, so it wouldn't surprise me if that's how he's been supporting himself.
He was charged in CA on 5 counts of child porn, but he disappeared before his first court appearance. They didn't know where he was after that.
But you are so right that this could be a big moneymaker for someone like him.
He is also very computer savvy, from what I understand.