To Kill A Thief
From a philosophical tenet I first read in an Ayn Rand essay, one has to realize that when a man sets out to take or damage the person or property of another, that's the moment he commits suicide. By not recognizing his victim's right to his life and property, he renounces the concepts of life and property--which effectively is a denial of his own right to his own life.
When his victim then shoots him in self defense, it's the criminal's own finger on the trigger. One needs never feel guilt over successfully defending himself.
Now, if only the law were to be rewritten to support this tenet......
They've killed Freedom! Those bastards!