Yes, because as strange as this may sound, I think a lot of the "bad" people had some kind of severe trauma and are acting it out on others. That's not to excuse what they did, but I think it explains it sometimes. One example - the suspected serial killer David Parker Ray was severely neglected and abused as a child, and from what I've read, it sounded like he was acting out the abuse he endured on his victims. Had his childhood gone differently, it's quite possible that he wouldn't have turned out that way. Hard to say for sure, though.