Ned Touchstone, David Ferrie, and Jim GarrisonAs everyone who saw Oliver Stone's JFK knows, New Orleans District Attorney Jim Garrison, acting on a tip that David Ferrie might have been involved in some way in the assassination of the President on November 22, 1963, had him picked up and held for questioning by the FBI--who promptly let him go. Garrison assumed that they knew what they were doing and and didn't give the matter another thought until he had a conversation with Senator Russell Long, in late 1966, if memory serves. In his book On the...