| ### QUESTION 64 ### OF MURDER ###  |

| #### Prologue |

| #### #### In due sequence we must consider the vices opposed to commutative justice. We must consider (1) those sins that are committed in relation to involuntary commutations; (2) those that are committed with regard to voluntary commutations. Sins are committed in relation to involuntary commutations by doing an injury to one's neighbor against his will: and this can be done in two ways, namely by deed or by word. By deed when one's neighbor is injured either in his own person, or in a person connected with him, or in his possessions. #### We must therefore consider these points in due order, and in the first place we shall consider murder whereby a man inflicts the greatest injury on his neighbor. Under this head there are eight points of inquiry: #### (1) Whether it is a sin to kill dumb animals or even plants?(2) Whether it is lawful to kill a sinner? #### (3) Whether this is lawful to a private individual, or to a public person only? #### (4) Whether this is lawful to a cleric? #### (5) Whether it is lawful to kill oneself? #### (6) Whether it is lawful to kill a just man? #### (7) Whether it is lawful to kill a man in self-defense? #### (8) Whether accidental homicide is a mortal sin? ####  |