Neb. Rev. Stat. § 28-305 : CRIMES AND PUNISHMENTS — OFFENSES AGAINST THE PERSON —GENERAL PROVISIONS —305 - Manslaughter; penalty
(1) A person commits manslaughter if he or she kills another without malice upon a sudden quarrel or causes the death of another unintentionally while in the commission of an unlawful act.
(2) Manslaughter is a Class IIA felony.