I think my meaning about evolution was quite clear.
So, you think locking a child up for life is a slap on the wrist?

Does it really make sense to be against killing and still be in favor of killing a killer? If it is not ok to kill, it is not ok to kill.
"Beware the man in whom the need to punish is strong." (Confucius)
Or, if you are religious, "Revenge is mine said the Lord."