Los Angeles detectives have officially determined that the death of actor Mark Ruffalo's brother Scott was indeed a homicide. They initially arrested a suspect earlier this month, a friend of Ruffalo's named Shaha Adham, but she was later released. Then she popped up on TMZ and reiterated her innocence. She claims (or claimed at one time) that Ruffalo shot himself while playing a game of Russian roulette. In the back of the head. [People]