The assassination of John F. Kennedy, the thirty-fifth President of the United States, took place on Friday, November 22, 1963, in Dallas, Texas, USA at 12:30 PM Central Standard Time (18:30 UTC). Kennedy was fatally wounded by gunshots while riding in a presidential motorcade within Dealey Plaza. He was the fourth U.S. President to be assassinated, and the eighth to die while in office.
An official investigation by the Warren Commission was conducted over a 10-month period and published its report in September 1964, concluding that the assassin was Lee Harvey Oswald, an employee of the Texas School Book Depository in Dealey Plaza. A later official investigation by the House Select Committee on Assassinations (HSCA) was conducted from 1976 to 1979, and concluded that Lee Harvey Oswald probably acted with at least one other person. The assassination is still the subject of widespread speculation, and has spawned a number of Kennedy assassination theories.
http://en.wikipedia.org/wiki/Kennedy_assassination_theories