It was called 'JFK: The Smoking Gun Great movie because I knew little about it, other than LBJ ordered the hit.

So it talks about how the bullets were improperly described in relation to the damage. A full metal jacket goes through a person, while a hallow point does all its damage on impact. THREE shots were fired in this scenario. First one supposedly ricocheted, 2nd went through his back, but the 3rd one (had to be hallow point), went to his skull. The angle of that 3rd shot was inaccurately told to be from Oswald. The bullet hole was facing the direction of the car. Oswald was caddy corner. Here's the big one: Oswald's bullets were 6.5mm. The hole in JFK's head was a 6mm. The hole would have to be larger than 6.5mm. Guess what size ammunition AR-15s use? 5.56

So where did the AR-15 come from? Well, the car behind him was secret service. George Hickey was in possession of an AR-15. The people in the cars behind them reported the smell of gunpowder; the smell of gunpowder was on the street. They would very likely not smell Oswald's gunpowder. So after all that there was a huge coverup. Shit like secret service was in possession of all of the photos taken at the rushed autopsy, they had his brain, room was packed, Warren commission did not request a hearing with the witnesses that went to the police and gave their testimony. However, at the end of the video, they concluded it was likely an accident.