Former U.S. Secret Service Agent Clint Hill, who was assigned to First Lady Jacqueline Kennedy and was in the presidential motorcade during the assassination of U.S. President Kennedy, stands outside the JFK Tribute in Fort Worth, Texas on November 22, 2013. People visited the JFK Tribute on the 50th anniversary of the assassination of Kennedy as he rode in a motorcade through Dealey Plaza in Dallas. By Tom Pennington/Getty Images.
