This theory is complete bollocs and ridiculous. There is not a single witness who saw this happen. Almost all heard the shots coming from the book depository, not two from there and one from the limo. The shot that killed JFK was vastly different from one that would be fired from an AR-16. Furthermore, this person who, according to this theory “shot kennedy” testified, that they were long in the overpass when he reached for his gun. Also it is PROVEN that oswald fired 3 shots, by 3 shell casings and massive amount of witness testimony.
Not to mention the fact that he wasn’t the only one to complete the oswald shot challenge. His shots were easy to reproduce, by anyone who would try it.
Finally, there wasnt a coverup, if any sort. Unless you think a massive report is a coverup, then i can’t help you.
My theory is that Oswald acted alone, fired 3 shots and killed JFK