It was a tragic tale. Enjoying a sunny day on the lake with his fiance, James Woodmancy waited to be tugged out of the water and onto water skis when, suddenly, the rear of the boat ran over him. Then, as rescuers tried to pull him onto the boat, his life preserver inexplicably came off. He slipped under the water and drowned. Or did he? State prosecutors, Tennessee Wildlife Resources Agency officers and an FBI agent aren't so sure. In fact, they're downright suspicious. "We never found a body," Sullivan County District Attorney General Greeley Wells said. Couple that with...