Mullaney v. Wilbur

Mullaney v. Wilbur, 421 U.S. 684 (1975), is a criminal case in which a unanimous court struck down a state statute requiring a defendant to prove the defense of provocation to downgrade a murder conviction to manslaughter.[1]:17 Previous common law, such as in Commonwealth v. York (1845), allowed such burden on the defense.[1]:17

Mullaney v. Wilbur
Argued January 15, 1975
Decided June 9, 1975
Full case nameMullaney v. Wilbur
Citations421 U.S. 684 (more)
95 S. Ct. 1881; 44 L. Ed. 2d 508; 1975 U.S. LEXIS 70
Case history
PriorOn writ of certiorari to the United States Court of Appeals for the First Circuit
Holding
The Maine rule does not comport with the requirement of the Due Process Clause of the Fourteenth Amendment that the prosecution must prove beyond a reasonable doubt every fact necessary to constitute the crime charged.
Court membership
Chief Justice
Warren E. Burger
Associate Justices
William O. Douglas · William J. Brennan Jr.
Potter Stewart · Byron White
Thurgood Marshall · Harry Blackmun
Lewis F. Powell Jr. · William Rehnquist
Case opinions
MajorityPowell, joined by unanimous
ConcurrenceRehnquist, joined by Burger

Maine's statute[2] defined murder as unlawfully killing with malice, with malice defined as deliberate and unprovoked cruelty, and added that killings were presumed to be unprovoked unless the defense proved provocation by a preponderance of the evidence.[1]:17 Justice Powell delivered the opinion for the court that provocation was a crucial part of the charge in that it determined "the degree of culpability attaching to the criminal homicide".[1]:17

States were able to circumvent this decision by careful wording, as in Patterson v. New York, in which provocation, or "extreme emotional disturbance", was classified as an allowable defense excuse, not as a listed element.[1]:17

See also

References

  1. Criminal Law - Cases and Materials, 7th ed. 2012, Wolters Kluwer Law & Business; John Kaplan, Robert Weisberg, Guyora Binder, ISBN 978-1-4548-0698-1,
  2. Mullaney v. Wilbur, 421, June 9, 1975, p. 684, retrieved 2017-02-25
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