Also known as: voluntary manslaughter
Written by attorneys — see sources below.
An intentional killing that would otherwise constitute murder but occurred in the heat of passion following adequate provocation and before a reasonable cooling-off period had elapsed. At common law certain situations such as a serious battery on the defendant or a close relative qualify as adequate provocation while mere words and long-past wrongs do not. In some jurisdictions an honest but unreasonable belief in the need for deadly force in self-defense supplies an independent ground for mitigation.
Iain Irons learned during a staff meeting that his colleague had criticized his work in an email sent weeks earlier. After the meeting Iain confronted the colleague in the hallway and received only sarcastic replies. Enraged by the remarks Iain pulled a knife and stabbed the colleague to death. Because the provocation consisted solely of words the killing remains murder rather than intentional manslaughter.
Isaac Irving watched his brother argue with a coworker at a construction site. The coworker suddenly punched the brother in the face. Isaac grabbed a nearby pipe and struck the coworker fatally. The serious battery on a close relative occurred moments before the killing and the facts support reduction to intentional manslaughter.
Ivy Ibarra saw her neighbor reach quickly into a jacket pocket during a heated sidewalk dispute. Believing the neighbor was drawing a weapon Ivy stabbed the neighbor with a screwdriver she carried. The belief was honest though unreasonable. In jurisdictions recognizing imperfect self-defense the killing is reduced to intentional manslaughter.
Israel Irving discovered his spouse with another person at a party. He left the scene drove home and returned two hours later with a weapon. By then a reasonable person would have cooled and the killing is therefore murder rather than intentional manslaughter.
In June 1966, a jury convicted Stillman E. Wilbur, Jr. of murder in a Maine state court. The prosecution introduced Wilbur's pretrial statement describing how he fatally assaulted Claude Hebert in Hebert's hotel room after a homosexual advance, together with circumstantial evidence of the killing. Although the defense presented no evidence at trial, it argued that Wilbur lacked criminal intent or that the homicide amounted at most to manslaughter because it occurred in the heat of passion provoked by the advance. The trial court instructed the jury that an intentional and unlawful homicide would support a finding of malice aforethought unless the defendant proved by a fair preponderance of the evidence that he acted in the heat of passion on sudden provocation. After the jury twice returned for additional instructions on implied malice and the definition of heat of passion, it convicted Wilbur of murder. Wilbur appealed his conviction to the Maine Supreme Judicial Court, which upheld the trial court's instructions and affirmed the judgment. Wilbur then filed a petition for a writ of habeas corpus in federal district court. The district court granted the petition, and the Court of Appeals for the First Circuit affirmed that decision. After the Maine Supreme Judicial Court issued its opinion in State v. Lafferty reaffirming its view of state law, the Supreme Court granted certiorari in this case and remanded to the Court of Appeals for reconsideration. On remand, that court again applied Winship, this time to the Maine law as construed by the Maine Supreme Judicial Court. The Supreme Court granted certiorari a second time to consider the constitutional question presented by the Maine homicide law as applied to Wilbur's case.
Ilana Isaacs walked into her garage and found her spouse embracing a neighbor. She immediately seized a nearby wrench and struck the neighbor fatally. The killing occurred before any reasonable cooling period and therefore qualifies as intentional manslaughter.
This was a writ of error to a judgment of the Circuit Court of the United States for the Western District of Arkansas sentencing the plaintiff in error to death for the murder of Philip Henson, a white man, in the Cherokee Nation of the Indian Territory. The defendant was tried and convicted in 1893, and upon such conviction being set aside by this court, 150 U. S. 551, was again tried and convicted in 1894. The case was again reversed, 157 U. S. 675, when Allen was tried for the third time and convicted, and this writ of error was sued out. The facts are so fully set forth in the previous reports of the case that it is unnecessary to repeat them here. We are somewhat embarrassed in the consideration of this case by the voluminousness of the charge, and of the exceptions taken thereto, as well as by the absence of a brief on the part of the plaintiff in error.
View caseIra Irving learned months earlier that a business partner had cheated him. Months later during an unrelated argument Ira stabbed the partner. The long-past wrong supplies no adequate provocation and the killing remains murder.
Brandon Joseph Williams, an Army veteran, was convicted by a jury of murdering Veta Karla Conrad, known as Karla. The jury assessed punishment at sixty-seven years' confinement and a $10,000 fine. Williams timely appealed to the Court of Appeals of Texas, Houston (14th Dist.). Karla and her daughter Sarah were living with Williams at the residence of his mother, Belinda Sue Williams, in Lake Jackson, Texas. Karla and Sarah shared Sue's bedroom while Sue slept on the living room couch and Williams had his own bedroom. On the night of the shooting, Williams, who had been using synthetic marijuana and methamphetamine, woke Sue and said he heard something outside. He told her to take Karla and Sarah into the bathroom, but Sue refused to avoid scaring them. Williams went through the kitchen and out the backdoor. Sue rose and saw him standing in the breezeway by the garage. He appeared startled, fell backwards, then raised and pointed his gun at her while advancing and yelling for her to get on the ground. Sue backed up, turned on a lamp, identified herself as his mother, and knelt on one knee. A single bullet from Williams's gun struck Karla, who had entered the room behind Sue. Sue tackled Williams, causing the gun to fly out of his hand, and held him down until police arrived after Sarah called 911. Approximately twelve hours after the shooting and after emergency medical treatment, Williams gave a recorded statement to investigators. In the statement he described seeing a figure, directing it to put its hands up and identify itself, and firing one round. He acknowledged shooting someone and described delusions and fighting with the devil. Williams tested positive for amphetamines and cannabis; the attending emergency room physician noted his heart rate, blood pressure, and respiratory rate were so elevated from the drugs that an abnormally high level of benzodiazepines was required. At trial Sue testified that she believed Williams had been suffering from PTSD or a flashback, though she had been unaware of his recent drug use in the house.
Intentional manslaughter requires an intentional killing that would otherwise be murder but is mitigated because it occurred in the heat of passion upon adequate provocation before a reasonable cooling-off period elapsed. Murder requires malice aforethought that is not negated by such provocation.
Supporting sources
…The court further held, in part, that the trial court did not err in refusing to instruct the jury with respect to voluntary manslaughter since there was no evidence to support that verdict. : Subsequent to the trial in this case limited portions of the Georgia statute were amended. None of these amendments changed…
…and submission being the duty of a slave, much greater provocation is necessary to reduce a homicide of a white person by him to voluntary manslaughter, than is prescribed for white persons." Art. II, § 4711. In more recent times, some 40 years ago, Gunnar Myrdal's epochal study of American race relations produced findings mirroring…
…one day in prison. The Alabama Supreme Court reversed the conviction because of the trial judge's failure to charge the jury on voluntary manslaughter. Simpson was retried, reconvicted, and sentenced by the jury to 20 years in prison. The Alabama courts denied relief, and Simpson sought habeas corpus in the Federal District Court. That…
…451(a) (West 1999) (prison term of 5, 7, or 9 years for arson that causes great bodily injury); it imposes upon those guilty of voluntary manslaughter a maximum sentence of 11 years, § 193 (prison term of 3, 6, or 11 years for
…alternative. Obviously, other examples of such decisional paradigms exist. See, e.g., 18 Pa.C.S. § 2503 (describing offense of voluntary manslaughter as action under heat of passion or premised upon imperfect belief of self-defense). In charging the jury, the trial court’s objective is “to explain to the jury how it should approach its…
Yes. At common law catching one's spouse in the act of adultery is a classic category of adequate provocation that can reduce an intentional killing to intentional manslaughter provided the other elements of heat of passion are met.
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No. At common law mere words alone are legally inadequate provocation and cannot reduce what would otherwise be murder to intentional manslaughter.
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In some jurisdictions yes. An honest though unreasonable belief that deadly force was necessary in self-defense can mitigate an intentional killing to intentional manslaughter under the doctrine of imperfect self-defense.
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No. A serious battery inflicted on a close relative qualifies as adequate provocation at common law and can support reduction to intentional manslaughter.
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