I think it's important to remember that Joe isn't the sick individual who committed the crimes against helpless members of our society. When approached with the info, he did what he was supposed to do, and reported it to the authorities.
I know I have made many bad decisions in my lifetime, I can only pray that society wouldn't condemn me to death for one of them. These are not my only thoughts on the subject, just some of the better one's that have come out of the grieving process for these children. I couldn't imagine how difficult it must be raising kids in our society today.