Abstract

Some are blameless for posing a threat to the live of another because they are not morally responsible for being a threat. Others are blameless in spite of their responsibility. On what has come to be known as the "moral responsibility account" of liability to defensive killing, it is such responsibility, rather than blameworthiness, for threatening another that renders one liable to defensive killing. Moreover, one's lack of responsibility for being a threat grounds one's nonliability to defensive killing. In "Killing the Innocent in Self-Defense" (1994), I offered an early formulation and defense of such an account. In Section I of this chapter, I renew my defense of the claim that it is impermissible to kill a passive nonresponsible threat in self-defense. In Section II, I renew my defense of the claim that it is permissible to kill a blameless but morally responsible threat in self-defense.