[Urbane Guerrilla]

What wolf said. If a criminal must die to reduce crime -- of any description -- I can't see harm in it. Some lives are so ill spent that death actually improves matters. Dead men don't kill people and don't steal stuff. Would-be villains who get scared straight when having to make an instant choice between gratifying their unfair and heinous desires and continuing to register a heartbeat are improved thereby. Is this never to be desired?

Of the three choices, becoming a victim of death, untimely, is the worst. Be certain you do not interfere with others' relying upon themselves to save their own lives, or you will be humanity's enemy, and get treated as the barbarian you'd of course be.