Less than a week after his suicide attempt, Owen Wilson is back at home - and being watched around the clock. "Owen is in bad mental shape but said he is thankful to be alive," says a source close to the actor, who returned to his Santa Monica home on Saturday. "He knows he came close to ending his life, and he is happy that he was saved from himself. He is basically at home with people watching him 24/7." Wilson's rep declined to comment.