There is no suggestion of censure for this act of self-defense through the use of arms. But people no longer assume such things. So many think that it is perfectly moral to fight crime by banning or regulating weaponry. Of course not. But this is flawed on two counts.
Every individual murder proves the limitations of community defense.
Community defense is good, but it can never disqualify individual self-defense. What's happening today is that innocent people are being treated as criminals for merely trying to defend themselves. Such was the famous case of Benard Goetz in New York a number of years ago, and a host of others. If modern society had the moral courage to follow the Bible and execute murderers and habitual criminals, crime would virtually vanish. But if we don't have the courage to do that, we shouldn't compound our collective fault by taking away each other's rights to defend ourselves.