The point is that if the probability that each of two independent events occurred is x, the probability that both events occurred is x2. And since x is always less than 1, the probability of all events actually occurring keeps going down exponentially as the number of events increases. You do not seem to appreciate this.
The reason I don't appreciate it is because you're just making up probabilities. And none of these things are independent events.
So you have a doubt that Oswald filled out the Klein's coupon and the envelope with his Dallas post box, even though it appears very similar to his handwriting
Correct. Handwriting "analysis" is biased and unscientific and thus unreliable. Especially in this case where even the supposed standards of the practice aren't met (tiny sample that's a copy).
and to the handwriting on the coupon he filled out to purchase the handgun that Marina herself as Oswald's.
On what basis could Marina have possibly differentiated one handgun from another? Marina by her own account knew nothing about guns. "You men. That is your business."
Then you say you have a doubt that Klein's filled that order at all, despite the shipping order that was prepared showing that C2766 was used to fill the order.
There is no shipping order. And there is nothing to tie that "order blank" that you erroneously call a shipping order with that particular order coupon. For example, the coupon could have been made after the fact to match the "order blank". The handwritten serial number could have been added to the "order blank" after the fact as well. Did any of the other Klein's orders have "order blanks" with handwritten serial numbers on them? Did any of the other Klein's orders have copies of the order coupons and envelopes, but not money orders? No way to tell because the original microfilm
disappeared. Darn the luck. I guess we just have to have faith.
Then you say that you doubt that Oswald or anyone took out a money order to pay for this order.
Even though his timesheet says he was at work all day? So since we're invoking probabilities here, what are the odds that he snuck away from work walked over a mile away to the post office and back to buy and mail a money order and nobody noticed?
Let's say that the probability of each doubts being fulfilled is x = .1 (I am being generous: that would mean that, contrary to their documents, 1 in 10 of Klein's orders were not ordered; a 1 in 10 chance that items were not shipped; and a 1 in 10 chance that they would indicate that an order had been paid when payment had not been received).
As long as we're just making up numbers here, let's say x = .95.
But the thing is that these are not independent events. All it takes is for the handwriting to be misidentified and the rest of the stuff doesn't matter. What are the odds that a biased and unscientific process with no standards or controls on a tiny sample size on a copy would give you unreliable results? Pretty darn high.
In order for Oswald not to have received the gun, all three doubts must be fulfilled.
Even if a gun did get shipped by Klein's to PO box 2915 (and there no evidence of such), and was not intercepted by the FBI who was monitoring his mail (what are the odds of that?), you still have the hurdle of showing that
Oswald picked it up.
Then you have a rifle photographed in Oswald's hands within a week of when the rifle would most likely have arrived in Oswald's post box.
You have no idea when this "would most likely have arrived", because you don't actually have anything that shows when it would have been shipped. That's like saying that the Seaport Traders revolver would most likely have arrived in January. But instead it supposedly arrived on the same day as the rifle (what are the odds of that?).
Then that rifle shows up in the very building that Oswald worked in and has prints that are not inconsistent with Oswald's prints
"not inconsistent with Oswald's prints"? LOL. Is that what we're calling them now?
and Oswald is seen carrying a long package to work that morning etc.
You keep forgetting the part about "too short to hold the C2766 rifle".
The probability becomes exponentially lower. Even if you put a probability of each piece being false at .5 the probability that ALL of this evidence being false becomes extremely small as the evidence mounts. That is the problem with your position.
The problem with your rebuttal is it is not necessary for ALL of what you mentioned to be false in order to come to a false conclusion. In fact none of it has to be false -- just incorrectly interpreted.
Even if you were able to prove that C2766 actually went through the mail and was picked up by Oswald, you still have to get it in Oswald's hands at 12:30 shooting at the president.