RIP Clint Hill
Remarkable career and life - Secret Service agent who served each President from Eisenhower through Ford. He is most famous for being the agent who scrambled on the back of JFK's limo on that fateful day. He blamed himself for JFK's death and it led to many personal problems for him, starting with alcohol and, much later, a suicide attempt.
If you haven't read 'Five Presidents', do it. You will thank me.
'I define fear as standing across from Joe Louis and knowing he wants to go home early.' - Max Baer