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.

A Secret Service agent, he leaped onto the president’s limousine in Dallas in 1963 and was credited with saving the first lady’s life. But he was haunted by his inability to save her husband.

Clint Hill, the Secret Service agent who jumped onto the back of a limousine carrying President John F. Kennedy after he was shot in Dallas in 1963, has died. Hill died Friday at his home in California at the age of 93.