The best theory I ever heard was written in a book called "Fatal Error". Some points in the book have been debunked, but these were ones the author admits he was speculating on and were outside his area of expertise.
The guy who wrote it was a ballistics expert and marksman who was one of like 3 guys who were able to duplicate what was alleged to have been Oswald's shots, and he began researching before he was to be interviewed on CBS.
Long story short, the second shot, the one that blew off the back of the President's head, was fired accidentally from the AR-15 carried by the Secret Service in the car behind Kennedy when it lurched forward after the first shot from Oswald.
All of the cover up appears to have been to protect the agent, whose shot was believed to have been the one that actually killed the President (actually the first shot, which severed his spine would have been fatal anyway)
I have yet to hear any better theory and I recommend the book if you get a chance to read it as the ballistics part of it, at least, makes a lot of sense.
Originally Posted by: OlHoss1884
That story was featured a couple of weeks ago in a special on REELZ cable channel. I don't really buy it, though. The agent would have been standing then falling back just half a street width from huge crowds along the curb. It's almost inconceivable that nobody would have noticed. Also, and more significantly, that "blowing off the back of Kennedy's head" - evidenced by Jackie trying to climb to the trunk to retrieve a piece - just couldn't have come from a shot from behind (IMO).
There were SO-O-O many people/forces with strong motives to off Kennedy: Castro in revenge for assassination attempts on him. anti-Castro Cubans for Kennedy's failure to provide air and other support for the Bay of Pigs, the CIA for the same reason as well as Kennedy's leftist tendencies in general, the Chicago mob because of Kennedy messing around with Giancana's gf, Marilyn Monroe, but strongest of all, IMO, the guy with the home field advantage - LBJ who gave up his position as most powerful man in Congress to be VP, then was completely ignored and ostracized by the Kennedys.
There is a Clue Game-like rumor around my city here, Killeen, TX,: Ted Connell on the Grassy Knoll with a Deer Rifle. Ted Connell, a local car dealer here, dead now, was LBJ's "fixer". If there was a dirty job that needed doing, he did it. If you go to Dallas, the scene of the crime, you can see the great cover and at the same time, relative isolation in that Grassy Knoll area, with an easy exit route to the rear. There are also numerous rumors of possible witnesses dying or disappearing mysteriously.
I doubt we will ever know for sure.
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