"Unscientific"! LOL.
Handwriting "analysis" is unscientific. Deal with it.
Let's see: there are prints,
What prints?
photos,
Photos of what?
an order form in Oswald's handwriting,
LOL.
serial number match,
Match to what?
Oswald's PO Box,
What about it?
an alias linked to Oswald
How is this alias "linked to Oswald"?
via a fake ID in his possession at the time of arrest,
Do you have any evidence that this ID was in his possession at the time of arrest -- beyond "cop said so after he was dead"?
the rifle is found at his place of work,
Lots of people worked there.
there is no accounting for any other rifle in Oswald's possession.
There is no accounting for THAT rifle in Oswald's possession either.
Whew.
Whew indeed. Your rhetoric overfloweth.
It's hard to imagine what more evidence there could be.
Rhetoric and unsupported claims aren't evidence.
I wonder what constitutes "scientific" evidence if all of this does not do the trick.
Do you have any understanding of the scientific method? Handwriting "analysis" is not a hard science. Especially in 1964. No standards, no tests, no demonstration of accuracy, not measurable, not repeatable, not falsifiable. And even more unreliable on a tiny sample from a copy.
How much such evidence is there to link John Wilkes Booth the gun he used to kill Lincoln?
Not this false analogy again. There is much better evidence against Booth than "who may have bought the gun".