For example, Oliver Stone in "JFK" used the Zapruder film and autopsy photos provided by the government, sometimes without question. To solve the case, you have to use information the US government could not have forged. (I do use some of their information to solve the mystery BUT it is information the scoundrels did not change, they didn't know they needed to back in 1964).
So how do you solve the shooting mystery? This video shows how. For anyone to believe that there is a way to prove anything, you have to verify it yourself. For what I show, that should take less than an hour for a reasonably intelligent person. Then if you look at probabilities involved with this information, it goes from unbelievable to oh my gosh very quickly.