Today in History: John F. Kennedy Assassination, November 22, 1963

I just read this gripping account of that day, from Clint Hill, who was the Secret Service officer assigned to Jacqueline Bouvier Kennedy.

RELATED: At ABC News, "John F. Kennedy Assassination Still Intrigues, 47 Years Later: New JFK Documentary and Motion Picture Will Probe Grim Day in Dallas."

And at Memeorandum, "The Kennedy Assassination: 47 Years Later, What Do We Really Know?"