Max Holland is very good, especially at showing us, in the Robert Hughes film, the movement of something white (Oswald's t-shirt?) in the Sniper's Nest window about five seconds before the first shot rang out, that Oswald had to be standing and awkwardly leaning forward when he fired his steeply-downward-angled / missing-everything first shot (which we now know was at hypothetical "Z-124," i.e., half-a-second before Zapruder resumed filming at Z-133), that the ejection pattern of the three shells found on the Sniper's Nest floor support the scenario that Oswald was standing for his first shot and kneeling for his second and third shots, that overly ambitious, scandal-plagued and revengeful Jim Garrison changed his theory against Clay Shaw from "He organized a homosexual thrill-kill assassination of JFK" to "He organized the assassination for the CIA" due to a KGB article published in a Communist-owned Italian Newspaper three days after he'd arrested Shaw (which newspaper article -- or a clone of it that was published in a far-Left newspaper in France -- was given to him by JFKA conspiracy theorist Joan Mellen's husband), but I think he's mistaken when he postulates that Oswald's first shot glanced off the traffic signal's mast arm and indirectly nicked James Tague down by the triple underpass.
Max Holland’s video depiction of the sniper firing the first shot from a standing position is lacking a lot. If he had constructed a complete sniper’s nest with all of the boxes in their proper places (including all of the boxes immediately surrounding the nest), he would have found out that there really isn’t enough room for a sniper to kneel between the boxes.
Where does Max Holland indicate the “movement of something white” in the window? I simply don’t remember where it was indicated to be. If it was in the open (lower 1/4) part of the window, he would have been sitting on the box and leaning forward preparing to aim the rifle.
Sitting on the box while firing all three shots would have been his most stable and feasible position given the ergonomics of the sniper’s nest, and he should have known that from his military training and experience. The window box was in a position that could have interfered with an early first shot. That interference might have caused an inadvertent discharge (before it was fully aimed).
The ejection pattern could also be explained by using more force ejecting the first missed shot due to frustration regarding an inadvertent discharge.
