IMO it was Lee Harvey Oswald and maybe one other person but it wasn't a large group of people....the grassy knoll is a plausable explination of where the other shooter was...I've been to the Book Depository, it would have been a quick couple shots to fire off so accurately AND his rifle wasn't all that top of the line.

Communists and the Mafia are the usual suspects in this theory which add up in hindsight. Cuba/USSR: Bay of Pigs and Missle Crisis and the downed U-2 pilot....Mafia: Bobby Kennedy cracked down on organized crime hardcore.

Whoever did the Kennedy boys certainly missed one.....TED KENNEDY, he killed a woman and got LIFE ......in congress