After decades of reading on the subject and viewing various documentaries, it seems pretty obvious to me that LHO was a shooter among two or more shooters. The bullet that entered JFK’s throat was not fired by Oswald. LHO was likely the designated “patsy” (to use his term) with the entire operation attributed to him.
When arriving at the theater...Oswald was a suspect ONLY with the Officer Tippit shooting (remember, there were two significant shootings that day). He was taken downtown and booked, then gun-powder tested. No gun-powder on his cheeks...gun-powder found on his hands.
More than likely, Oswald shot Tippit (no reason ever devised to make sense). On firing the rifle multiple times? Probably never happened. He was not the first shooter or the second. But he in all likelihood...probably had a Tippit ‘problem’.
Also, this ‘landlady’ who rented him the room. She’d never done this before, and never again after Oswald departed this Earth. Oddly, her family and husband....had CIA connections.
Back in the misty deeps of time a close friend worked for Bolt, Beranek and Newman, in Cambridge, MA. BBN were the people to go to for acoustic analysis of, oh, say, submarine propellers, or nuclear reactors. They were contracted in the 1970s by some federal agency or other to analyze the so-called “dictabelt recording”. Said friend, an electronics engineer, spent a couple of weeks in Dallas setting up microphones and recorders and setting off firecrackers in a myriad of locations trying to duplicate the signature that was on that dictabelt. Bottom line, the only configuration that worked included a shooter on the grassy knoll. The team submitted their report, and according to said friend they were told to destroy it and STFU. All I know, but I do know that.