Check the posts on all of the claims that the Mafia, Lyndon, the government or space aliens did it. Not one of these knuckleheads can explain how it was done.
It’s so much easier to a lazy person just to claim someone did something than offer hard evidence on how it was done.
A humble suggestion:
We should set up a shooting range with a slow-moving target approximating the range at Dealey Plaza. Make it a tourist stop. I’d wager that about half of competent shooters could make the shots LHO did with the gear he used. About half of the other half would tell you they could have, on the right day with enough luck.
No one who sat in that nest and made that shot would ever again buy the BS that it was improbable, let alone impossible, If LHO could have made the shots, most of the conspiracy theories fade into oblivion.