It's not about a person's life, it's about justice, God has His own righteous laws on his creatures and executes them righteously. Our laws has it's own righteous and executes them righteously. People will be judged for their own actions, it doesn't mean every body's life is value and important, it depends on you, yourself, by doing the right thing by following the law, if you follow the law, you'll be fine, if you don't, then you'll be judged. That's the purpose of why we are here.Life is life. If it is incorrect to take a life in one instance, it is incorrect to take a life in another instance. What is execution? It takes a life. The whole intent is to take the life of another.
When you start deciding that one life is valuable and one life isn't, you open a whole can of worms. Who gets to decide whose life is valuable and whose isn't?
Not trying to start an argument here, I'm just saying, if the sanctity of life is not qualified. Either it is or it isn't.