JFK was not killed on 11/22/'63, because he wasn't really alive! He had died after being sworn in of his Addison's disease, and so brother Bobby, Jackie, and LBJ had had an intricate system of radio control devices attached to his corpse, and controlled by ex-marine and puppeteer, Lee Harvey Oswald. When Kennedy's embalmed corpse began smelling ripe, it was decided to give the President a magnificent death at the hands of his puppeteer, Oswald, in order to keep the fact that the country had been governed by a corpse a secret forever. Ruby was then hired to kill Oswald, so he could never tell the world the truth. Because there had been an obvious conspiracy involved, people like Jim Garrison misconstrued the truth, and focused on a plot to kill the President, rather than on the truth, that his death had been faked... long after he had died.
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-Bill, otherwise known as Kraichgauer