18 U.S.C. § 1112 : US Code - Section 1112: Manslaughter

      (a) Manslaughter is the unlawful killing of a human being without
    malice. It is of two kinds:
      Voluntary - Upon a sudden quarrel or heat of passion.
      Involuntary - In the commission of an unlawful act not amounting
    to a felony, or in the commission in an unlawful manner, or without
    due caution and circumspection, of a lawful act which might produce
    death.
      (b) Within the special maritime and territorial jurisdiction of
    the United States,
      Whoever is guilty of voluntary manslaughter, shall be fined under
    this title or imprisoned not more than 15 years, or both;
      Whoever is guilty of involuntary manslaughter, shall be fined
    under this title or imprisoned not more than 8 years, or both.