Oh come on... this is terrible. Even if it WERE true (which personally I have serious doubts about) that he was molested, it is not an excuse for what he did. It is not an appropriate time to bring it up. It's a very see-through tactic to try to divert some attention away from what he did back to the whole priest thing.
I had very simular thoughts: His att. had very few ways of going:
Make the victium look bad or make the attacker a victum....