***Oswald was the lone shooter.***
Many years ago I read an article, I think it was in Popular Mechanics (or another such magazine) in which it was shown that a piece of thread was found caught on the butt plate of the Carcano rifle that matched Oswald's shirt.
That's true. I don't think anyone disputes that Oswald was part of the scheme. He was on post, rifle in hand.
However, the rifle could not possibly perform up to what it has been accused of. NO WAY. Its been tried. Every time they tried, the Carcano failed miserably.
Most likely there were other shooters to take up the slack. We may never know. But I'm still puzzled by the pristine bullet, and the fact that big chunk was blown off the BACK of Kennedy's head.