Also known as: heat of passion
Written by attorneys · grounded in primary & secondary sources — see below
A sudden and intense emotional state that overwhelms self-control. In criminal law the state must arise from adequate provocation of a kind that would inflame an ordinary person and must persist without cooling at the moment of the killing.
Paige Porter learned that her business partner had removed her name from patent filings during a late-night office confrontation. When the partner punched Paige's brother in the face and then reached into a bag, Paige struck the partner with a laptop stand and killed her. The battery on the close relative supplied the provocation that produced the sudden passion required to reduce the charge from murder to voluntary manslaughter.
Pearl Porter discovered her spouse in an intimate encounter with a coworker at the store after closing. Hours later Pearl searched social media, drove to a bar, and stabbed the coworker. The discovery would have aroused intense passion in an ordinary person, yet the multi-hour delay and deliberate travel showed that the required sudden passion had not persisted at the time of the killing.
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Pierce Patterson found his spouse with another person and immediately seized a box cutter while shouting in distress. Coworkers restrained him and escorted him out. The immediate attempt to seize the weapon demonstrated that Pierce had in fact experienced the provoked passion.
Penelope Price argued with her partner for several minutes after a serious battery on her sibling. She held a heavy object but did not strike until the partner reached into a backpack. The interval of continued verbal exchange permitted a reasonable person's passion to cool before the fatal blow.
Perry Pratt discovered his spouse engaged in sexual relations with a coworker after an inventory dispute. He left the scene, completed duties at another location, then drove to confront and stab the coworker hours later. The discovery supplied classic adequate provocation, yet the completed tasks and deliberate search showed that passion had cooled before the killing.
Patricia Patel endured public insults about her skills and a past patent dispute before a coworker slapped her sibling. She later killed the coworker with a box cutter. The verbal taunts and earlier patent removal were mere words and past wrongs that could not arouse the sudden intense passion required for mitigation.
The provocation must be of a kind that would cause an ordinary person to experience sudden intense passion sufficient to overwhelm self-control. The defendant must in fact have experienced that passion at the time of the killing. There must not have been sufficient time for a reasonable person's passion to cool. The defendant must in fact not have cooled off.
Supporting sources
Yes. Courts have long recognized discovery of a spouse engaged in sexual relations with another person as a classic instance of adequate provocation that can produce the required sudden and intense passion.
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No. Mere words, trivial battery, and provocation based on wrongs that occurred long in the past are legally inadequate and do not reduce murder to voluntary manslaughter.
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Yes. A serious battery inflicted on the defendant or a close relative is a recognized category of adequate provocation that can arouse the sudden intense passion needed for mitigation.
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…circumstances involved. It applies to every defendant, whether the professional criminal or one committing a crime of momentary passion who is not part and parcel of organized crime. It will slow down the investigation and the apprehension of confederates in those cases where time is of the essence, such as kidnapping, see…