Todd Milsap, the son of Country Music Hall of Fame artist Ronnie Milsap, was found dead Saturday at Four Corners Marina in Antioch, according to police. Todd Milsap was 49. He was found dead on his houseboat at Four Corners Marina by his son, who had not heard from his father in two days, according to police. The death appears to be medically related, according to the Nashville Police Department.