It amazes me how many of them still protest their innocence in their last statement. Is this that they truly werent guilty, or is it that they've convinced themselves they werent?
If i had done something terrible like a murder, and i was just about to be executed, you may as well say "You know what, i did it, i was lying to save my backside" as theres no point carrying on the charade anymore, unless they've said it so long they've convinced themselves?
Well some of them may be telling the truth, quite a few prisoners have been executed and later found to be innocent.