It's his desire to hurt people, that's what gives off that impression to me...
Well said. You can just see it oozing out of him; the desire to hurt people, for one, and the desire to be seen as being "able" to hurt people. For a really good look at that, check out "Exit Wounds," based on a book by a police officer who probably was kicked off the force. He goes to anger management and sneers at everyone because he knows he doesn't need to manage his anger. He just needs to hurt more people...which he justifies to the nth degree. A sick mind.