Modern Kennedy research is exactly where the Nix film places it. First of all, not ignoring that Greer passes the gun in Zapruder and second, seeing his left arm cross in Nix. That's the evidence right there. Two visual facts along with alot more that make Greer shooting jfk an irrefutable fact. In other words, there will never be any challenge posed against this truth. It will be ignored by researchers and the average person will laugh at how obvious it is.
Greer passes the gun in Z and his left hand goes missing because the film pans upward. There is no evidence in Zapruder that his left hand ever returned to the wheel. At least a few researchers have outright lied about Greer's hands not leaving the wheel when it's crystal clear in the frames.
Greer's left arm crosses his right shoulder in Nix, proving the government generated illusion is an obvious truth confirmed by the Albert Nix film.