So much learning going on today. Remarkable progress. The thing speaks for itself. If the evidence is deemed conclusive that Oswald was on the 6th floor at 12:30 as the evidence, history books, and law enforcement indicate and that he was on the 2nd floor a couple of minutes later, then that is conclusive that he moved from the 6th to 2nd floor unnoticed in that timeframe. The evidence supports both conclusions even if his exact movements can't be recreated with certainty or even deemed improbable by those who apply an impossible standard of proof to the topic.
All the subjective nitpicking of witness testimony and pedantic attempts to analyze events down to the second are not necessary to reach this conclusion. The inability to do so creates no doubt of the fact.
How can be unknowable, even contrary to some interpretations, and still raise no doubt that it could be done because the evidence confirms that it was done. It is not necessary for me or anyone to prove how it was done to the satisfaction of anyone else. Once a thing has occurred, the odds against it occurring are no longer relevant in determining whether it did in fact occur. Even if the odds were a billion to one against it happening, and there is nothing like that in this context. This is called discovering the simplicity that lies on the far side of complexity (i.e. not going down the rabbit hole). Res ipsa loquitur.
"If the evidence is deemed conclusive that Oswald was on the 6th floor at 12:30 as the evidence, history books, and law enforcement indicate..."There is not a single piece of credible evidence that puts Oswald "on the 6th floor at 12:30". Not a single piece.
This is the crux of your mental problems regarding this case. You blindly believe it is a fact that Oswald was on the 6th floor at 12:30 pm, you can not be swayed from this "fact", yet EVERY SINGLE PIECE OF CREDIBLE EVIDENCE regarding who was on the 6th floor just before, during and after the assassination points away from Oswald.
Your idea, that Oswald was on the 6th floor taking the shots is a THEORY. You simply can't face this truth and you have been made to look a real fool over this issue only recently.
You are way out of your depth here because your inability to think correctly about this puts you at a massive disadvantage.
Just for fun - name a single piece of credible evidence that puts Oswald on the 6th floor at 12:30 pm.
This challenge goes out to all Nutters.
PS: Before you even dare think about it, the presence of the rifle does not place Oswald on the 6th floor at 12:30 pm.