If you want to make conclusions without having ALL the Facts, that's your call. Remember when viewing any JFK Assassination Special that contains various eyewitnesses telling their 11/22/63 story, that the overwhelming majority of the time a portion of their tale ends up on the cutting room floor. Time constraints do prevail. Your NOT having listened to the Gordon Arnold Sixth Floor Q/A makes you ignorant of Arnold detailing this same thing happening to him in his segment of, "The Men Who Killed Kennedy".
Never gonna happen, but I would like to view the "cutting room floor" walk-through material that Arnold did in "The Men Who Killed Kennedy". Same goes for the entire "walk-through" material that Dave Wiegman did with Gary Mack on "JFK, Death In Dealey Plaza". It would be helpful to know the path that Wiegman took UP the Knoll, across, and then down the Knoll to Elm St. And he and Gary Mack did a walk-through, though it is Not entirely on that JFK Special starring Gary Mack. On that same JFK Special, Wiegman DETAILED feeling the "compression" of a bullet whizzing passed his face. Strange, but that would be at least a 4th shot. It also would be indicative of a shot being fired "on the horizontal" which was DETAILED in "The Men Who Killed Kennedy".