The assassination was never, for me, about history as much as it was about a way to see the world. It was impossible to imagine a lone gunman not because the evidence didn't match up (magic bullet theory, anyone?) but because I needed a bigger explanation for the killing to make sense.
As it turns out, I was not alone; even before the Warren report was released in September 1964, critics had started lining up. They claimed the commission had moved too fast and drew conclusions without sufficient cause.
In his 1965 book “The Unanswered Questions AboutPresident Kennedy's Assassination,” New York World-Telegram & Sun city editor Sylvan Fox lays out the case for conspiracy. For one thing, he writes, “[t]here is considerable doubt about the number of shots fired and the direction of at least one of the shots”; for another, “[Jack] Ruby managed to enter tightly guarded Dallas Police Headquarters building unseen and to shoot [Lee Harvey] Oswald in the presence of more than 70 policemen.”
more here.