If the jury decides there is absolutely NO question of guilt & the perp denies guilt, then the executioner should take him/her behind the courthouse & put a bullet into the back of their head, immediately after the trial. Murderers awaiting trial should be made to watch, in case they might want to change their plea & avoid the bullet.
BTW, I don't care if the perp is adjudged as mentally unfit. These MONSTERS are a menace to society, as surely as is a rabid dog. They deserve the same swift death for exactly the same reason - protection of innocent people.
We agree, mostly. I’d like for others are similarly inclined see them suffer a bit.