Robert Todd Riddle, a 56-year-old maintenance technician of Deer Park, Texas, on Sept. 4, 2019, was on a boardwalk adjacent to Trinity Bay in Kemah, Texas, when he saw an unidentified man floundering in the water and calling for help. Despite rough water on the bay, Riddle removed his outer apparel and dived into the bay, swimming toward the man, who had reached a buoy and clung to it. Meanwhile, boaters, alerted to the situation, piloted to the buoy and brought the man aboard their boat, unaware of Riddle, also in the water. Bystanders saw Riddle swimming back toward the boardwalk, but then he disappeared. Search efforts were initiated, but Riddle’s body was not located until the following day. He had drowned.