I did my research for a while 15+ years ago, went over it at a forum for months with idiots who demonstrate no critical reasoning skills at all, just a cult behavior for the stupidity. The photo's alone destroyed 90% of the bullcrap claims of an inside job and basic science did the rest.
The inside job claim was bullcrap then, it is still bullcrap now. Not going to watch your Freaking useless video since it is a subject that is so well known and refuted many times.
This inside job crap is in the same category of conspiracy nonsense as the "fake" moon landings, and the never ending it was three shooters, no it was the army, no it was the FBI, no it was the CIA, no it was the mob who shot and killed Kennedy.
The evidence is abundant in favor Oswald being the shooter, the same way for the moon landings were real, but stupid people reject the well supported forensic evidence for a "conspiracy" of government nefarious behavior, made on the mountain of speculation and abject science ignorance.
Get over it and grow up!