Execution is not a deal. Getting a confession to solidify that execution is a good thing. Letting their legacy (via children and grandchildren) survive is a sacrifice for the greater good. However, in reality, their legacy is simply this: These monsters raped, tortured and murdered babies and children to have power and wealth. They drank the blood of their victims and ate their organs. They serve the master Satan very well. That is their only legacy. No matter what they confessed.