During an altercation with his girlfriend, Frankie Muniz put a gun to his head and also punched her, according to a police report obtained by TMZ.com. The report, filed Friday in Phoenix, Ariz., details an argument between the couple about "prior relationships." Elycia Turnbow, his girlfriend, told the police that Muniz "grabbed a gun and held it to his head, possibly with the intent of committing suicide."