Officer Puts His Lifeguard Training to Good Use in River Rescue, A Jacksonville police officer leapt into the St Johns River to save a drowning man who was being pulled by a current in the early hours.. Bodycam footage released by the Jacksonville Sheriff’s Office shows Officer Robert Green removing his vest and duty belt before lowering himself into the water and swimming toward the struggling man. Police said Green, a trained lifeguard, reached the man and brought him back to the bulkhead, whe