I blame that c&%$ Sarah Palin's hateful rhetoric. Link PHOENIX - A man described as a President Barack Obama fanatic pleads guilty to threatening to kill Maricopa County Sheriff Joe Arpaio. Adam Eugene Cox appeared in a Tennessee courtroom on Wednesday. He was arrested last year for a death threat that began on the Internet. Cox threatened to kill the sheriff and his family. Cox will not go to jail. He was sentenced to supervised probation.