Abstract
In a society marked by liberal gun ownership laws, and an increasingly militarized police force, how should we think about cases where a homeowner shoots a person who has mistakenly knocked on the wrong door, or where a police officer shoots someone who is unarmed? The general tendency – by shooters, courts, and many observers – is to use the framework of self-defense. However, as I will argue, relying on the framework of self-defense is inappropriate in these cases, because theories of self-defensive killing are built up around a very specific type of case, namely, a random, sudden, one-off encounter between roughly equally matched strangers. When a person who acts in self-defense has undertaken certain preparations to kill in self-defense – such as buying a gun, or undergoing certain kinds of training – they transform what would have been defensive violence into offensive violence. But because the self-defense framework distinguishes only between defensive and aggressive violence, it cannot easily register the unique moral features of offensive violence. Relying on the self-defense framework, then, produces judgments that are overly permissive of killings by gun owners and police, masking them as self-defensive when in fact they are much more morally fraught.