Also known as: sudden heats · heat of passion
Written by attorneys · grounded in primary & secondary sources — see below
A sudden and intense passion arising from adequate provocation that overwhelms an ordinary person's self-control. The passion must arise before a reasonable cooling-off period has elapsed and must actually grip the defendant at the moment of the killing.
Select any source to read its text and confirm it supports the definition.
Sabrina Shah entered a secluded testing room and found her husband engaged in sexual relations with a coworker. She immediately seized a nearby torque wrench and struck the coworker repeatedly on the head. The killing occurred while Sabrina remained in the grip of sudden heat triggered by the discovery. Because the provocation was adequate and no cooling-off period had elapsed, the offense is reduced to voluntary manslaughter.
Simon Stern watched his brother defend him during an argument at a product launch. When the cofounder punched the brother in the face, Simon grabbed a laptop stand and struck her moments later. The battery on his close relative ignited sudden heat that persisted through the brief confrontation. The killing therefore qualifies as voluntary manslaughter rather than murder.
Sarah Sullivan learned of a patent dispute and retrieved a concealed weapon before arriving at a meeting. When the managing partner slapped her during the argument, she struck immediately with the weapon. The prior preparation shows the killing was not the product of sudden heat but of earlier formed intent. The offense remains murder.
Stephen Shaw became intoxicated during an argument and struck the victim after a sudden insult. The factfinder may consider the intoxication when determining whether the killing occurred in sudden heat rather than with premeditation. Because the evidence supports an impulsive act driven by passion, the charge may be reduced to voluntary manslaughter.
Samantha Stone was beaten by a neighbor and retreated to a farmhouse where she discussed reporting the incident. Hours later she returned and shot the neighbor after seeing tractors cross the property line. The interval allowed her passion to subside, so the later act was not committed in sudden heat. The jury may convict her of murder.
Sean Steele retrieved a fireplace poker and concealed it before attending a scheduled meeting. When the partner grabbed and slapped him, he struck immediately. The prior arming demonstrates that the killing resulted from calculated intent rather than sudden heat arising at the moment of the battery. The charge is therefore murder.
The provocation must be adequate to arouse sudden intense passion in an ordinary person. The defendant must actually have been provoked. No reasonable cooling-off period may have elapsed, and the defendant must in fact not have cooled. Each element is examined separately on the facts.
Yes. Catching a spouse in the act of adultery has long been recognized as classic adequate provocation sufficient to arouse sudden intense passion in an ordinary person. When the defendant acts immediately while still gripped by that passion, the killing is reduced to voluntary manslaughter.
…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…
…defendant of proving, in rebutting the statutory presumption, that he acted with a lesser degree of culpability, such as in the heat of passion, to win a reduction in the offense from murder to manslaughter (and thus a reduction of the maximum punishment of 20 years). The State had posited in Mullaney that requiring a defendant…
…of crime, yet where, as on a charge of murder, the material question is, whether an act was premeditated or done only with sudden heat and impulse, the fact of the party being intoxicated [is] a circumstance proper to be taken into consideration." 1 W. Russell, Crimes and Misdemeanors 8 (citing King v. Grindley,…
…such as those committed with coolness of mind, and second degree used for murders committed on impulse, in frenzy or the heat of passion
…deliberation must show that the determination to kill was reached calmly and “in cold blood” rather than under impulse or the heat of passion
No. Mere words, standing alone, are legally inadequate to constitute provocation. A serious battery or discovery of spousal adultery is required to meet the threshold for sudden heat that reduces murder to voluntary manslaughter.
The cooling-off period has elapsed. Once the defendant retreats and discusses reporting the matter to authorities, passion is presumed to have subsided. Later renewed anger does not revive the sudden heat needed for voluntary manslaughter.
Yes. When the defendant retrieves and conceals a weapon before the confrontation, the conduct demonstrates calculated intent formed in advance. That preparation negates any claim that the killing occurred in sudden heat arising only at the moment of provocation.