Well then feel free to prove that these witnesses saw different men.
Claim the lineups were unfair. Okay.
Claim the witness identification was wrong and it was not Oswald who they saw. Okay.
But, to claim that these witnesses saw different men is dangerously close to taking up residence in Kookville.
You only think so because your entire argument rests on that, since almost none of your "witnesses" actually witnessed a crime.