As John I's Hoover quote shows, the deed was done. Oswald was gone. There was going to be no due diligence in the case. No sharing of the evidence in discovery. No lawyers filing motions. No emotional arguments in court - on both sides - in front of a jury of Oswald's peers. Who knows - Lee himself may have even wanted to testify. Maybe even Marina. Has anyone noticed how hard Marina was crying the day they buried Lee? I mean she was bawling. Look at the photos. But there was going to be none of that in court.
Ruby at least had that but if you notice, he was trying to say things before his death but up to a point. There's a clip of him leaving the courthouse and he said something like, "...the man in the White House..." and he also made that statement in front of the cameras that he wanted to go to Washington. But I think Ruby played ball for the most part. Sorry folks but Ruby was a crook and that's what crooks do. No two ways about it.
The reason why I'm bringing up Ruby as compared to Oswald is simple - Lee was fired up. He was saying all of the right things - no legal representation, no fairness in the lineup. You can witness this several times in film clips where he's really fired up. That one time showing him shackled and in a t-shirt, the other time in the hallway. It was slowly becoming clear to him that he was being royally fucked. And we got the best gem of all - "I'm nothing but a patsy." I bet back then, a lot of people had to look up that word.
But once he was dead, and once Hoover said what he said - and believe me, Hoover was ten times more powerful than KBach, the assistant AG - all the rest of it is just noise. The WC (i.e., the lawyers under the WC members) had a mandate. Make it happen, boys. Say three shots were fired, one missing wildly, one hitting the back (er, I mean the neck courtesy the 38th president) heading downward then working its way up, then down. And there being no termination point from this shot, but just say it came out of the neck. Say the last shot comes right after the 2nd, after the assassin works a creaky bolt-action rifle, looks into a misaligned scope and fires away.
Sure say all of this and more. Wrap it in a leather cover then solemnly hand it over to the grieving 36th president. "We've solved it, Mr. President." "Thank you for your courage and commitment," he replies. And time goes on.