murder: 1. It is a cosmic injustice to allow a murderer to keep his life. 2. Killing murderers is society's only way to teach how terrible murder is. The only real way a society can express its revulsion at any criminal behavior is through the punishment it metes out. If murderers all got 10 years in prison and thieves all got 20 years in prison, that would be society's way of saying that thievery is worse than murder. A society that kills murderers is saying that murder is more heinous a crime than a society that keeps all its murderers...