JFK's body was stolen. Anything coming outta Bethesda regarding that body would Not be admitted.
And this would help the CT cause ...
how? Nothing coming out of Bethesda would be particularly important to the prosecution of Oswald at all ("And was JFK still dead when he arrived at Bethesda, Dr. Humes?").
I assume by "stolen" you mean removed from Texas without a Texas autopsy. Yes, we here on the prosecution team will stipulate to that. How is that relevant to Oswald?
I assume you think the defense would be arguing that the body was removed from Texas so it could be altered in order to disguise the number and/or direction of the shots and that a Texas autopsy would have revealed ...
what? Not only is this purely speculative and therefore inadmissible, but it has little or nothing to do with Oswald's guilt. The issue at trial would not be whether Oswald was the lone assassin but whether he fired at JFK from the 6th floor of the TSBD. If he did, he was guilty regardless of who else may have fired.
Stringing together speculative conspiracy factoids is not a defense outside of forums such as this. That's what CTers never seem to understand. They seem to think a trial of Oswald would have looked like a mini-trial of 875 conspiracy factoids and 12 different woulda coulda conspiracy theories. No.