Here is a link describing the way the guy did it.
https://www.sctonline.net/local-news-front-page-slideshow/morgan-recreates-kennedy-assassination
Thank you. A niggling detail. The man who recreated the shots was on a platform 40 feet high, and the sixth floor of a building would be closer to 60 feet high. Don’t know how much difference that would make. Also he kept referring to 5-9 seconds to get the shots off. Why that big a range?
The Zapruder film shows Kennedy’s car disappearing behind a road sign with all being well and reappearing with Kennedy and Connelly reacting to the ‘miracle shot’, the one that went through Kennedy’s neck, through Connelly’s body, through his wrist and ending up in his leg. I guess the question for the ages is how long was the car behind the sign?
The assassination occurred when I was a junior in high school and I’m pretty sure that whatever facts are being withheld won’t be made public in my lifetime.