Clinton J. Hill was a U.S. Secret Service agent who served under five United States presidents, from Dwight D. Eisenhower to Gerald Ford. Hill was best known for his act of bravery on November 22, 1963, when President John F. Kennedy was assassinated in Dallas, Texas. During the assassination, Hill ran into the line of fire from the Secret Service followup car, leaped onto the back of the presidential car, and shielded the stricken president and the First Lady with his own body as the car raced to Parkland Memorial Hospital. His act was documented in film footage by Abraham Zapruder. Since the death of Nellie Connally in 2006, Hill was the last surviving person who was inside the presidential limousine that day.