Former U.S. Marine snipers Craig Roberts and Gunnery Sergeant Carlos Hathcock, who was the senior instructor for the U.S. Marine Corps Sniper Instructor School at Marine Corps Base Quantico in Quantico, Virginia, both said it could not be done as described by the FBI investigators. “Let me tell you what we did at Quantico,” Hathcock said. “We reconstructed the whole thing: the angle, the range, the moving target, the time limit, the obstacles, everything. I don’t know how many times we tried it, but we couldn’t duplicate what the Warren Commission said Oswald did. Now if I can’t do it, how in the world could a guy who was a non-qual on the rifle range and later only qualified 'marksman' do it?” source

The following is a transcript of Hunt's testament on the audio tape clip:

I heard from Frank that LBJ had designated Cord Meyer, Jr. to undertake a larger organization while keeping it totally secret. Cord Meyer himself was a rather favored member of the Eastern aristocracy. He was a graduate of Yale University and had joined the Marine Corps during the war and lost an eye in the Pacific fighting.

I think that LBJ settled on Meyer as an opportunist like himself and a man who had very little left to him in life ever since JFK had taken Cord's wife as one of his mistresses. I would suggest that Cord Meyer welcomed the approach from LBJ, who was after all only the Vice President at that time and of course could not number Cord Meyer among JFK's admirers—quite the contrary.

As for Dave Phillips, I knew him pretty well at one time. He worked for me during the Guatemala project. He had made himself useful to the agency in Santiago, Chile where he was an American businessman. In any case, his actions, whatever they were, came to the attention of the Santiago station chief and when his resume became known to people in the Western hemisphere division he was brought in to work on Guatemalan operations.

Sturgis and Morales and people of that ilk stayed in apartment houses during preparations for the big event. Their addresses were very subject to change, so that where a fellow like Morales had been one day, you'd not necessarily associated [sic] with that address the following day. In short, it was a very mobile experience.

Let me point out at this point, that if I had wanted to fictionalize what went on in Miami and elsewhere during the run up for the big event, I would have done so. But I don't want any unreality to tinge this particular story, or the information, I should say. I was a benchwarmer on it and I had a reputation for honesty.

I think it's essential to refocus on what this information that I've been providing you — and you alone, by the way — consists of. What is important in the story is that we've backtracked the chain of command up through Cord Meyer and laying [sic] the doings at the doorstep of LBJ. He, in my opinion, had an almost maniacal urge to become President. He regarded JFK, as he was in fact, an obstacle to achieving that. He could have waited for JFK to finish out his term and then undoubtedly a second term. So that would have put LBJ at the head of a long list of people who were waiting for some change in the executive branch.