Clint Hill, the Secret Service agent who jumped onto the back of the limousine moments after shots rang out in Dealy Plaza. Those who knew him tell CBS News Texas that Hill never really overcame the guilt he felt on that tragic day.

Clint Hill, who was seen in film footage of the assassination scrambling across the back of the presidential limousine, died at his home. He was 93.

Clint Hill, the former US Secret Service agent who leapt onto President John F. Kennedys limousine to shield Jacqueline Kennedy during the 1963 assassination in Dallas, has died at 93. Hills quick actions became one of the most memorable moments of that tragic day.