I am writing this paper for Psych class on a movie character and their illness. I believe the dude from No Country for Old Men is seriously crazy and would like to know what his actual diagonsis would be. Any ideas?

Who's guy? Javier Bardem' s Anton Chigurh (Character) - Biography (http://www.imdb.com/character/ch0027247/bio)?
[I]
"Anton Chigurh is an emotionless, compassionless killing machine. His inability to comprehend human life is matched only by his ability to take it, as he does with ruthless abandon throughout the running of No Country For Old Men. Hired to track down drug money by a group of Americans, he quickly kills those who hired him and begins to search for the money on his own. He carries a cattlegun, which fires a cylinder from a hose which is connected to a tank of compressed air to destroy cylinder locks and dispatch a host of victims. He also carries a silenced assault shotgun. It is said that Anton Chigurh is now one of the most iconic villains of all time.

As for the victims who dont have some sort of reason to be dead behind them, he flips a coin to decide their fate.

Oddly enough, Chigurh is described as having his own set or morals, however twisted they may be. Anton does not kill at random or without purpose. Anton sees himself as a hand of fate; an instrument who exacts what is supposed to happen upon those it is supposed to happen to.

An alternative theory is that Anton Chigurh is really Ed Tom Bell performing the actions he cannot do within the limits as sheriff. He uses this fake personality to remove a cynical narcotics cartel from his district, and has to kill everyone that can expose his murderous actions."