Homicide is the killing of one human being, including an unborn child, by another. Homicide is either: (1) Murder; (2) Manslaughter; (3) Excusable homicide; (4) Justifiable homicide; or (5) Vehicular homicide. Source: SDC 1939, § 13.2001; SL 1985, ch 176 ; SL 1995, ch 122 , § 10; SL 2005, ch 120 , § 150.