Berfore Arthur met Hayden or Justin he commited murder. When a man was dying in the middle of the road he got a pistol and shot him in the head. No one convicted him because he was never found after that by the Chinese goverment.
Arthur has slick black hair and always keeps it back. He wears a jacket that hides two pistols.
Arthur has a dark personality and isn't afraid to kill a person randomly.
Arthur appears in Shooter and Feild test. And briefly appears in Past Life.