I look at it in this way. I am a sinner. That is to state that I have yielded to temptation. Accordingly, can I state with certainty that I am a better person than that predator? No, I cannot. I can state that I have never done anything remotely approaching the evil of his deed, but I have never (thank God) wanted to do anything nearly that evil. I can't take credit for not doing what I wasn't tempted to do. Therefore, unless I had God's power and could see into the very soul of that man, I could not say what he did and didn't deserve. The point of the criminal justice system is to give society the protection it deserves. Only God can say what any given individual truly deserves. I would want to take revenge on such a person, of course, but if I did so, I would be judging myself at the same time.

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"Some people complain about the system. The system is not good, so they can't do anything. It's an excuse. Freedom is in your heart." (Jin Xing)