Terms like conclusive and absolute, which Martin loves, are simply not part of the lexicon of either courtroom trials or historical research. This is just semantic game-playing, and I decline to play.
Where exactly are you getting these "historical research" guidelines from? Name a historian who says "go with a conclusion regardless of how weak, questionable, and contradictory the actual evidence for it is. Never ever admit you don't know, even if you have to make something up."
"Conclusive" isn't as absolute as you want to pretend. But it has to be more than mere storytelling and conjecture.
I continue to say Martin tips his hand by relying on such terms. What is the "conclusive" evidence of Oswald's "absolute" innocence? What is the "conclusive" evidence there "absolutely" was a conspiracy?
There you go, trying to shift the burden yet again.
I believe credible evidence and reasonable inferences support a logical and reasonable conclusion that Oswald was a lone gunman. Beyond that, I'm not going to get sucked into Yet Another Pointless, Wheel-Spinning Debate about specific items of evidence.
Of course you won't. Because you have no cogent reply to the myriad problems with the evidence and the conjecture about it that you want to accept on little more than faith.
But I'm curious how many times you are going to keep replying and then saying you're not going to reply.