A Hawai'i man who threatened to attack President Obama when he was president-elect has been sentenced to 18 months in prison and three years of supervised release.

Mark Miyashiro, a schizophrenic, told his therapist just weeks before Obama was due to return to Hawai'i for winter vacation in December that he wanted to shoot the president-elect with a slingshot to see if he was the antichrist. The doctor told authorities.