I saw a docu on the History channel or Discovery where the acual rifle was used and all participants got off the three rounds in less than eight seconds.
Oswald took a full eight.
This guy can do all the studies he wants, he’s still full of crap.
And then you woke up and found out that you had wet the bed.
In the one that I saw, one of the marksmen even made the comment that it wasn't really very difficult.