There is no evidence-zip, zero, nada-that anyone other than that loser Oswald was involved.
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The government said otherwise, about 16 years after the assassination.
You mean the Select Committee on Assassinations? Is that the one that based all their conclusions on a bogus Dictabelt recording?
“In 2003, ABC News aired the results of its investigation on a program called Peter Jennings Reporting: The Kennedy Assassination: Beyond Conspiracy. Based on computer diagrams and recreations done by Dale K. Myers, it concluded that the sound recordings on the Dictabelt could not have come from Dealey Plaza, and that Dallas Police Officer H.B. McLain was correct in his assertions that he had not yet entered Dealey Plaza at the time of the assassination.”
http://en.wikipedia.org/wiki/Dictabelt_evidence_relating_to_the_assassination_of_John_F._Kennedy