Oswald was framed for the attempt on Walker!
Accurate statement. A dead guy is the easiest person to frame.
So far all these guys have is ...Oswald killed Kennedy because he was a homicidal maniac. How do they know he was a homicidal maniac?...Well, because after all-he killed Kennedy.
You didn't know Oswald was a trained USM, REALLY!?!
Recent events demonstrate you don't have to be trained to kill...to kill someone. However, Kennedy was indeed shot by professionally trained hitmen. Done clean and quickly.