One man must not kill. If he does it is murder

Verily there is magic in numbers!

But how many does it take? This is the question.

But now, instead of discussion and argument, brute force rises up to the rescue of discomfited error, and crushes truth and right into the dust. "Might makes right," and hoary folly totters on in her mad career escorted by armies and …

But a state or nation may kill as many as they please, and it is no murder.

How many does it take to annul the commandments of God, and render that lawful, which HE has forbidden?

Alexander the Great demanded of a pirate, by what right he infested the seas. By the same right, retorted the pirate, that Alexander ravages the world. How far was he from the truth?