Hill was on duty in Dallas when President Kennedy was shot and after Kennedy was killed, Hill raced over to the car to shield Jacqueline Kennedy from any other bullets. Hill said once he was inside the car, he looked at her and thought, "How did I let this happen to her?" When they arrived at the hospital, Robert Kennedy called Hill and the Secret Service agent had to break the news to him.

President John F. Kennedy and Jacqueline Kennedy arrive at Love Field, Dallas, Texas.
By Cecil W. Stoughton