Concept
Intent to Cause Great Bodily Injury
Intent to injure
Intent to Cause Great Bodily Injury
Murder at common law is an unlawful killing committed with malice aforethought, and malice can be shown by more than one state of mind. One of them is a deliberate intent to inflict great bodily injury on another human being. A defendant who kills while holding that intent has acted with implied malice and is guilty of murder, even though death was not the result the defendant was seeking.1 Courts word the idea in different vocabularies. In People v. Aaron the Michigan Supreme Court defined malice as the intention to kill, the intention to do great bodily harm, or a wanton and willful disregard of the likelihood that one's behavior will cause death or great bodily harm.2 Massachusetts speaks of grievous bodily harm, describing the intent required for murder as an intent to kill, to cause grievous bodily harm, or to do an act that a reasonable person would have known created a plain and strong likelihood of death.3 The words great, serious, and grievous all point to the same category of injury, and the next section takes up how jurisdictions define it.
The label implied separates this theory from intent to kill. Intent to kill is express malice, the deliberate intention to take a life.4 A defendant who set out only to injure does not hold that intention, so the law supplies the malice from the intent to injure itself rather than from any wish for death.5 The mechanism is easy to follow. A person who deliberately sets out to inflict grave harm has chosen to attack another's body in a way that carries an obvious risk of death, and when death follows, it is the very danger the defendant created. Letting that person avoid murder because the death exceeded the plan would reward the defendant for the victim's bad luck, which is why the defendant need not have wanted the victim dead. Some courts describe the result as an implied intent to kill, which reaches the same place by another route.6
Where murder is divided into degrees, this theory is generally second-degree murder.7 The grading follows from the structure of the theory, because the top grade is ordinarily reserved for killings that were premeditated and deliberate, and a defendant who intended injury did not plan a death.8 The rule has old roots. By the middle of the nineteenth century, English courts had read malice aforethought to include an intention to cause death or grievous bodily harm to any person.9 The early courts may have accepted the equation partly because serious injury so often ended in death when medical treatment was poor, which made an intent to kill a natural inference from an intent to injure grievously, and that inference is weaker today.10 The Model Penal Code, which abolishes malice, has no separate category for intent to inflict serious injury and leaves such cases to be reached, if at all, as recklessness under circumstances showing extreme indifference to life.11 In jurisdictions that keep the common-law structure, the category remains a standard route to murder.
Statutes codify the rule in similar words. The Illinois murder statute, quoted in People v. Harris, makes a person guilty of murder who kills without lawful justification if he "intends to kill or do great bodily harm to that individual or another."12 The Texas statute reaches a person who intends to cause serious bodily injury and commits an act clearly dangerous to human life that causes death.13 The Texas version adds a dangerous-act element to the intent, so an answer on an exam should track the wording of the jurisdiction in the question. As described in Williams v. State, Forest v. State shows how little the wish for death matters: testimony that the defendant meant to shoot the victim in the buttocks established an intent to cause serious bodily injury, and that supported a murder conviction under the Texas statute.14 The Illinois court in Mayes v. People, affirming the murder conviction of a husband who hurled a beer glass at his wife, recited the long-standing principle that death following an unlawful act done with intent to do great bodily harm is murder even when it happens contrary to the actor's original intention.15
The rule reaches only an unlawful killing, so the next question is what could make a gravely injurious act lawful. The purpose of protecting property cannot. The law ranks human safety above property, and there is no privilege to use force calculated to cause death or serious bodily injury to repel a threat to land or goods unless the intrusion also endangers the defender's own person.16 Katko v. Briney was a civil spring-gun case, but criminal courts draw the same line. In People v. Ceballos, the California Supreme Court held that a defendant whose trap gun shot an intruder on premises where no one else was present was not justified, because deadly force against a burglary is permitted only where the felony is forcible and atrocious and threatens death or serious bodily harm.17 An earlier Iowa decision, recited in Katko, had gone further and called a death inflicted merely to stop a trespass on property other than a dwelling murder, even if the killing was necessary to prevent the trespass.18 So a defendant who intends to injure a thief or trespasser gravely, and kills, cannot answer the unlawful-killing element by pointing to the victim's wrongdoing.
The contrasting case is a genuine threat to life or limb. Deadly force is lawful when the defender reasonably believes it necessary to avoid imminent death or great bodily harm, and a killing of that kind is not unlawful, so there is no murder to grade.19 People v. Jones marks the boundary: the justification depends on a fear of great bodily harm, and a defendant who apprehends only a misdemeanor assault must endure it rather than retaliate with deadly force.20 The facts that move the answer are the character of the threat and the reasonableness of the belief. An intent to injure seriously, formed in response to a danger to life, is lawful, while the same intent formed to protect a garage is not.
One further limit is flagged here and taught with voluntary manslaughter. A killing committed with an intent to injure gravely can still be reduced from murder to voluntary manslaughter when adequate provocation leaves the defendant governed by passion and a reasonable person would have been similarly governed.21 In People v. Berry, a husband strangled his wife after weeks of taunting, and the California Supreme Court reversed the murder conviction because the jury had not been instructed that it could find a heat-of-passion killing.22 Provocation therefore operates on malice itself, and a fact pattern with both an intent to injure and a provoking event needs both questions answered.