involuntary manslaughter

Involuntary manslaughter is, in US law, the unlawful killing of another human being committed without intent and without what US law calls 'malice' — that is, without conscious malicious intent to kill. The concept is defined in the federal criminal code, 18 U.S.C. § 1112, and covers two situations: either that death occurs during the commission of an unlawful act not amounting to a felony, or that an otherwise lawful act is carried out in such a reckless or irresponsible manner that it results in a person's death.

The decisive element is not that the perpetrator wished to kill, but that the person displayed such a degree of negligence or carelessness that the act or omission can legally be attributed to the death. It is precisely in this grey zone — between accident and criminally irresponsible conduct — that the concept finds its practical application in major trials.

In the Rust case — tried under New Mexico state law — where actor and producer Alec Baldwin fired a shot on a film set that killed cinematographer Halyna Hutchins, involuntary manslaughter was the central charge. The prosecution argued that the handling of firearms on the set by those involved was so grossly irresponsible that it met the criteria for the concept, even though no one intended to harm anyone.

In the Conrad Roy case, where Michelle Carter urged her boyfriend by text message to take his own life, the concept was applied in a far more unusual context. The question was whether words and psychological pressure — without any physical act — could constitute the unlawful and irresponsible conduct required for a conviction. The Massachusetts courts found that they could, and Carter was sentenced for involuntary manslaughter.

The penalty under federal law is a fine, imprisonment for up to eight years, or both. Individual states have their own variations of the concept, and penalty ranges can vary considerably depending on the jurisdiction and the specific circumstances of the case.