KSM is not entitled to a jury trial under our laws. You already know that, so you are arguing dishonestly.
Your question is unanswerable because it is in no way analogous to this case.
Terrific, pick Hassan - the psychiatrist murdering Major then. He certainly is entitled to a jury trial and all the Constitutional rights of any citizen. Would you defend an act of jury nullification by one of his fellow Muslims that happens to be sitting on his jury? I'll eagerly await your convoluted logic where you say "no".