what is the quote about, "the grassy knoll" and the JFK conspiracy?

Answer 1

Memorable Quotes from the movie
JFK (1991)
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Jim Garrison: The Warren Commission thought they had an open-and-shut case. Three bullets, one assassin. But two unpredictable things happened that day that made it virtually impossible. One, the eight-millimeter home movie taken by Abraham Zapruder while standing by the grassy knoll. Two, the third wounded man, James Tague, who was knicked by a fragment, standing near the triple underpass. The time frame, five point six seconds, determined by the Zapruder film, left no possibility of a fourth shot. So the shot or fragment that left a superficial wound on Tague's cheek had to come from the three shots fired from the sixth floor depository. That leaves just two bullets. And we know one of them was the fatal head shot that killed Kennedy. So now a single bullet remains. A single bullet now has to account for the remaining seven wounds in Kennedy and Connelly. But rather than admit to a conspiracy or investigate further, the Warren Commission chose to endorse the theory put forth by an ambitious junior counselor, Arlen Spector, one of the grossest lies ever forced on the American people. We've come to know it as the "Magic Bullet Theory." This single-bullet explanation is the foundation of the Warren Commission's claim of a lone assassin. Once you conclude the magic bullet could not create all seven of those wounds, you'd have to conclude that there was a fourth shot and a second rifle. And if there was a second rifleman, then by definition, there had to be a conspiracy.