Voluntary manslaughter is the killing of a human in which the offender acted in the
heat of passion, a state that would cause a reasonable person to become emotionally or
mentally disturbed to the point that they cannot reasonably control their emotions. Voluntary manslaughter is one of two main types of
manslaughter, the other being
involuntary manslaughter.
Provocation
Provocation consists of the reasons for which one person kills another. "Adequate" or "reasonable" provocation is what makes the difference between voluntary manslaughter and murder. Provocation is said to be adequate if it would cause a reasonable person to lose self-control.
State of mind
Intent to kill
Voluntary manslaughter requires the same
intent as murder. The charge of murder is reduced to manslaughter when the defendant's
culpability
In criminal law, culpability, or being culpable, is a measure of the degree to which an agent, such as a person, can be held morally or legally responsible for action and inaction. It has been noted that the word ''culpability'' "ordinarily has ...
for the crime is "negated" or mitigated by adequate
provocation.
[Scott Mire and Cliff Roberson, The Study of Violent Crime: Its Correlates and Concerns (Boca Raton, FL: CRC Press, 2011), 138]
Imperfect self-defense
In some jurisdictions, malice can also be negated by
imperfect self-defense, the principle that an honest but unreasonable belief that it is necessary to defend oneself from imminent peril to life or great bodily injury negates
malice aforethought, the mental element necessary for a murder charge, so that the chargeable offense is reduced to manslaughter. Self-defense is considered imperfect when extenuating circumstances exist that are insufficient to constitute a complete legal defense to homicide, but nonetheless partially excuse the act that resulted in death.
United States
Model Penal Code
The United States'
Model Penal Code (MPC) does not use the common law language of voluntary and involuntary manslaughter. Under the MPC, a homicide that would otherwise be murder is reduced to manslaughter when committed "under the influence of extreme mental or emotional disturbance for which there is a reasonable explanation or excuse". Several court decisions in various jurisdictions have interpreted this language broadly by creating a subjective standard to determine whether the provocation was adequate from the defendant's point of view. This subjective standard diverges substantially from the common law
reasonable person
In law, a reasonable person or reasonable man is a hypothetical person whose character and care conduct, under any ''common set of facts,'' is decided through reasoning of good practice or policy. It is a legal fiction crafted by the courts an ...
test and allows the jury greater latitude.
For example, in ''
State v. Dumlao'', the court interpreted the MPC language broadly, holding that reasonableness should be evaluated from the defendant's perspective. The subjective standard for whether a provocation was reasonable, and thus adequate, would allow a jury to consider Dumlao's "mental abnormalities", including a medical diagnosis of "paranoid personality disorder".
Case law
References
{{DEFAULTSORT:Voluntary Manslaughter
Killings by type