Was gonna sleep on this and reply tomorrow, but I don't need to.
We need to hear more about his point of view. He
could be somebody who's feeling railroaded by the plot and wants to explore the interesting aspects of intraparty conflict, playing someone who is morally different from the others in order to come at a problem from different angles. In movies and comic books, characters of radically different morals are forced to work together, and while some of them try to screw the others over, it always works out in the end.
In a game, it doesn't always come out that way. He could think he's making things more interesting -- not that he's screwing things up, just that he's making things interesting -- while never realizing that he's messing up everyone's experience.
Talk to the group in private. Get a real feel for it. See what the group concensus is. Then talk to him. Maybe the group surprises you. Maybe they find it fun or interesting. Maybe this really is just your problem (not saying it is, but it is a possibility). Make sure that you
know that everyone is feeling this way, and then go to him with that.
If he doesn't like it, then he's in the wrong group.
The in-game option would be to try an all-evil campaign. Take the clamps off everyone else. Will he play a paladin to be different, or is his "I am different and special" really just "I have antisocial tendencies that I let out through my games"? The latter is not necessarily bad, but it sounds like a very different type of game than the one you want to have.
So see what the group wants, weigh it against what he wants and what you want, and go from there.
Very few people wake up in the morning and consciously think, "How can I screw you over?" Most people have an internal logic. You might not agree with it, but it's almost always there. If this guy is playing a stress-release mess-around game while you're going for a dramatic, cooperative narrative, that's your problem. Go with the majority vote to fix it, but don't go with "This guy is a jerk" as your mindset. Go with "This guy is looking for a different kind of game than I am". That makes it a lot less confrontational and bad and




stormy.
