Nope, compared to nothing. Just common sense is needed. But you don't believe your own lyin' eyes and the mountain of evidence that the fatal shot came from in front. That's your prerogative. But if I see that opinion, I will challenge it because I believe it's a travesty of justice that the crime of the last century was hung on "Lee Hardly." Quite possible Oswald shot nobody on 11/22/63 just as he said. Not saying that's a certainty; only a real possibility.
Jear Dames I mean Dear James,
I see.
Common sense, huh? Yes, that is the problem, actually.
The problem is that so many impressionable, "common sense" people like you have witnessed WITH THEIR VERY OWN EYES President Kennedy's upper body's "being slammed" backwards (due to the the combination of his wearing a rigid back brace / corset while undergoing a catastrophic neuromuscular reaction), and his head's going BACK AND TO THE LEFT !!!! (due to a sizeable part of his brain's being very rapidly ejected through a palm-sized hole in the upper right portion of his skull).
LOL
-- MWT