http://www.freerepublic.com/focus/f-news/1661048/posts
He was given a discharge on May 16 for what military officials in Iraq told The Associated Press was an "anti-social personality disorder." The officials spoke on condition of anonymity because of the sensitivity of the case.
A psychiatric condition, anti-social personality disorder is defined as chronic behavior that manipulates, exploits, or violates the rights of others. Someone with the disorder may break the law repeatedly, lie, get in fights and show a lack of remorse.
I've been trying to find the article but I saw yesterday where an American "official" stated that the reason was that SG was deemed a threat to the civilian population.
Gotta run gentlemen. See you on the flip side.