Toby Sheets, the former assistant to Steve Asmussen, died from drowning, Ioannis Aivatidis, the coroner in Corfu, Greece who performed the autopsy, told ABC News on Tuesday. Sheets disappeared last Tuesday, and was found dead on the beach on the island of Mathraki, in Greece, on Sunday. ABC said that the U.S. Embassy was working to have Sheets's body sent home to the United States. Sheets, 55, lived in Floral Park, New York, near Belmont Park. He had last been seen alive on Tuesday, June 11 at a bar on...