A visitor photographs the x marking the sport where John Fitzgerald Kennedy was shot on Dealey Plaza in downtown Dallas, Tuesday, Nov. 12, 2013. Church bells tolling throughout Dallas and a moment of silence at 12:30 p.m. on Nov. 22 will mark the moment 50 years ago when President John F. Kennedy was assassinated. A year of commemorative events organized by organizations throughout the city culminates this month with a solemn ceremony the city of Dallas has planned in Dealey Plaza, where Kennedy?s motorcade was passing as shots rang out. (AP Photo/LM Otero)