Also known as: heated passion · sudden heat of passion
Written by attorneys · grounded in primary & secondary sources — see below
An intense emotional state of rage or fury suddenly aroused by adequate provocation that negates the malice aforethought required for murder and thereby reduces the offense to voluntary manslaughter.
Henry Hoffman entered a secluded testing room and found his spouse engaged in sexual relations with another person. Enraged by the immediate sight, Henry seized a nearby tool and struck the other person fatally before any cooling could occur. The killing would otherwise constitute murder but qualifies as voluntary manslaughter because the discovery supplied adequate provocation that placed Henry in the heat of passion.
Hannah Hughes learned of patent theft during a confrontation and watched as the victim punched her brother. After several minutes of continued insults, the victim reached into a bag, prompting Hannah to strike fatally with a laptop stand. The sequence of battery on a close relative and sudden movement supplied adequate provocation that kept Hannah in the heat of passion without a reasonable cooling-off period.
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Holly Hayes was charged with murder after stabbing her spouse's lover upon discovering adultery. The prosecution sought to place the burden on Holly to prove heat of passion. Because the state cannot shift the burden of disproving an element of the offense, the jury must consider whether the sudden discovery placed Holly in the heat of passion that reduces the crime to voluntary manslaughter.
Hector Huerta confronted his coworker after a verbal dispute and wrapped an extension cord around the coworker's neck for several minutes. Although Hector claimed the act was only to frighten, the prolonged application to a vital area supports an inference of intent to kill. The absence of sudden adequate provocation means the killing remains murder rather than voluntary manslaughter arising from heat of passion.
Hiroshi Hasegawa retreated to a farmhouse after being beaten by a neighbor and discussed reporting the incident. Hours later he returned and shot the neighbor during renewed tractor activity. The interval allowed a reasonable person to cool, so the later confrontation did not revive the heat of passion needed to reduce the offense to voluntary manslaughter.
Hana Huang received insulting texts after discovering infidelity and drove to a bar hours later to confront the other person. She completed other tasks and located the person deliberately before stabbing. The passage of time and calculated actions show that any initial heat of passion had cooled, leaving the killing as murder rather than voluntary manslaughter.
The provocation must be adequate to arouse sudden intense passion in an ordinary person. The defendant must have actually been provoked. No reasonable cooling-off period may have elapsed, and the defendant must not in fact have cooled. These requirements appear in the common-law definitions of voluntary manslaughter.
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Yes. Catching one's spouse in the act of adultery has long been recognized as classic adequate provocation that can place a defendant in the heat of passion sufficient to reduce murder to voluntary manslaughter.
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No. Mere words, insults, or taunts standing alone are legally inadequate to arouse the sudden heat of passion required to mitigate murder to voluntary manslaughter under common law.
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The heat-of-passion mitigation fails. Once a reasonable person would have regained self-control, the killing remains murder even if the defendant later becomes angry again.
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The prosecution must prove the absence of heat of passion beyond a reasonable doubt when malice aforethought is an element of murder. A state may not shift that burden to the defendant.
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…might invoke today: that Cobham's statements were self-inculpatory, 2 How. St. Tr., at 19, that they were not made in the heat of passion, id. , at 14, and that they were not "extracted from [him] upon any hopes or promise of Pardon," id. , at 29. It is not plausible that the Framers' only objection to the trial was that…