Introduction to Homicide
Homicide is one of the most important and heavily tested subjects in first-year Criminal Law because a single death can support several different theories of criminal liability depending on the defendant’s mental state, the surrounding circumstances, the existence of an underlying felony, and the causal relationship between the defendant’s conduct and the victim’s death.
The word homicide does not itself identify a crime. Homicide simply refers to the killing of one human being by another. Some homicides are criminal. Others are justified, excused, or accidental under circumstances insufficient to establish criminal liability.
A killing may potentially be classified as:
- Murder.
- Voluntary manslaughter.
- Involuntary manslaughter.
- Another statutory homicide.
- A justified killing.
- An excused killing.
- An accident without sufficient criminal culpability.
The label “homicide” therefore begins the analysis rather than ending it. A strong homicide answer should proceed systematically.
I A Systematic Homicide Method
Did another human being die?
Did D actually and proximately cause that death?
Did D intend to kill, intend serious bodily injury, act with extreme recklessness, cause death during a qualifying felony, or act with a lesser mental state?
If murder exists, does the jurisdiction divide murder into degrees? If so, does premeditation, a specified felony, or another enumerated circumstance affect the degree?
Does some doctrine involving mitigation, justification, excuse, or causation change the result?
Begin homicide with causation and mental state, then classify the killing rather than beginning with the label "murder."
II Common-Law Murder
Common-law murder is traditionally the unlawful killing of another human being with malice aforethought.
Each part of that formulation matters. The killing must be unlawful. A justified killing does not become murder simply because the defendant intentionally caused death. The victim must be another human being. The defendant must legally cause the death. And the prosecution must establish malice through one of the recognized malice theories.
The Four Forms of Malice
Traditional malice can be established in four principal ways:
- Intent to kill.
- Intent to inflict serious bodily injury.
- Extreme reckless indifference to human life (depraved-heart murder).
- Felony murder.
Students should not treat them as four entirely unrelated crimes. They are four ways of supplying the malice required for traditional murder.
III. Intent-to-Kill Murder & Inferring Intent
The clearest form of malice exists when D intends to kill V and unlawfully causes V’s death.
The defendant rarely announces the required mental state in a way that eliminates factual dispute. Intent therefore may be established through circumstantial evidence, such as: Statements, Choice of weapon, Number of blows, Location of wounds, Planning activity, and Conduct before/after the killing.
Natural Consequences and Mandatory Presumptions
Students should be cautious with the familiar phrase: “A person intends the natural and probable consequences of his acts.”
That proposition may sometimes describe a permissible evidentiary inference. But criminal liability should not depend on an unconstitutional mandatory presumption that automatically forces the factfinder to conclude intent from particular conduct. The analytical language should reflect an inference rather than an irrebuttable or mandatory legal assumption.
IV. Malice Aforethought vs. Premeditation
The terminology creates a major trap. “Malice aforethought” does not mean that D necessarily reflected on the killing for hours, days, or weeks. A killing may possess common-law malice through an intent to kill formed very shortly before the fatal act.
Premeditation becomes especially important when a jurisdiction divides murder into degrees and reserves first-degree treatment for a willful, deliberate, and premeditated killing.
Malice Aforethought
Part of the traditional definition of murder. Can exist without lengthy reflection.
Premeditation
A separate concept often used to grade intentional murder (e.g., First-Degree vs Second-Degree).
The Crucial Distinction
Situation One: D and V unexpectedly begin fighting. During the confrontation, D suddenly decides to kill V, immediately grabs a weapon, and fatally attacks. There may be intent to kill (Murder), but whether there is legally sufficient premeditation requires separate analysis.
Situation Two: D researches V’s schedule, purchases a weapon days earlier, waits for V, and carries out the killing according to the plan. Intent to kill is present, but so is much stronger evidence of premeditation and deliberation.
Exam Tip: On every intentional homicide problem, ask two separate questions: 1) Did D intend to kill? 2) If the jurisdiction grades murder by premeditation, did D actually reflect sufficiently to make the killing deliberate and premeditated?
V. Intent to Inflict Serious Bodily Injury
A defendant can possess malice even without intending death. Under the traditional serious-bodily-injury form of malice, D intends to inflict serious bodily harm, V dies as a result, and the killing may constitute murder.
The theory recognizes that a person who intentionally inflicts extremely serious physical harm may bear murder-level culpability when that violence causes death even though death was not the defendant’s conscious objective.
The Metal-Pipe Example
Suppose D deliberately beats V repeatedly with a heavy metal pipe. D’s purpose is to cause severe bodily injury rather than death. V dies from the injuries.
The absence of an intent to kill does not automatically reduce the homicide below murder. Malice may be established through the intent to cause serious bodily injury.
Serious Injury Versus Ordinary Battery: Not every intent to make offensive contact becomes serious-bodily-injury murder when an unexpected death occurs. The student should examine the weapon, force, targeted body area, and circumstances to ensure the facts support the elevated intent.
VI. Depraved-Heart Murder
Depraved-heart murder is murder based on extremely reckless conduct demonstrating indifference to human life. It does not require an intent to kill or an intent to injure a particular person. Its central characteristic is an exceptionally grave form of risk-taking.
Negligence → Criminal Negligence → Recklessness → Extreme Recklessness (Depraved Heart)
Ordinary recklessness generally involves conscious disregard of a substantial and unjustifiable risk, and may support manslaughter. Depraved-heart murder requires something more severe. The risk, manner of disregard, and surrounding circumstances must support the conclusion that the defendant displayed extreme indifference to human life.
Firing into Occupied Building
D knows a building is crowded and repeatedly fires into it for amusement. The probability and gravity of fatal harm support extreme reckless indifference.
Extreme Dangerous Driving
Speeding alone is not enough. Requires multiple aggravating circumstances (e.g., extraordinary speed in dense pedestrian area with obvious awareness).
Russian Roulette
Consciously introduces a plainly lethal risk for no sufficient reason. Strongly supports extreme indifference if death results.
Dropping Heavy Objects
D drops a fifty-pound metal object from a 30-story roof over a crowded plaza. The extreme magnitude of the known risk is a powerful argument.
VII Felony Murder
Felony murder imposes murder liability for a death caused during the commission or attempted commission of a qualifying felony. Unlike intent-to-kill murder, felony murder can apply when the death itself was unintended.
Traditional Inherently Dangerous Felonies (BARRK)
- Burglary
- Arson
- Rape
- Robbery
- Kidnapping
The mnemonic is useful for spotting, but it is not a substitute for analysis. Not every unlawful act automatically becomes a felony-murder predicate.
The Merger Doctrine
The felony generally must be sufficiently independent of the homicide. This is the merger doctrine. An assault that is integral to the killing often merges into the homicide and cannot serve as the independent felony-murder predicate.
The policy is easy to understand: If every aggravated assault causing death qualified, then almost every unlawful killing resulting from an assault could be converted into felony murder. The separate distinctions among murder and manslaughter would be severely undermined.
Independent Felonies:
Independent crimes such as robbery or burglary present much stronger felony-murder predicates because their criminal objectives exist separately from the physical attack causing death. (e.g., D enters home to steal, accidentally causes resident's death = Burglary exists independently).
VIII. Duration and Agency in Felony Murder
Duration and Temporary Safety
Felony-murder liability may extend through commission, attempt, and immediate flight. The felony often continues until the participants reach a position of temporary safety.
Suppose D robs a bank and immediately flees while being pursued. During the escape, D’s vehicle kills a pedestrian. The robbery is still ongoing. But if D successfully escapes, returns home safely for hours, and later causes an unrelated fatal accident, the causal and temporal connection to the robbery becomes much weaker.
Agency vs. Proximate-Cause Approaches
Felony murder becomes difficult when someone other than a felon causes the fatal injury (e.g., police shoot a co-felon).
Agency Approach
Liability generally requires that the fatal act be committed by a felon or an agent acting in furtherance of the felony. (If police fire the fatal shot, liability is limited).
Proximate-Cause Approach
The question is whether the death was a foreseeable result proximately caused by the commission of the felony. (Even if police fired the shot, liability may exist if the felony generated the confrontation).
Exam Tip: Use a six-question checklist for every felony-murder problem: Predicate felony → independence/merger → timing → causation → agency or proximate cause → identity of killer and victim.
IX Causation in Homicide
The prosecution must generally prove both actual cause and proximate cause. The two questions are related but distinct.
Actual Cause (But-For)
The ordinary starting point is the but-for inquiry: But for D’s conduct, would V have died when V did?
A defendant does not avoid causation merely because the victim was already ill, injured, or destined to die eventually. If D’s conduct accelerated death, actual causation may be satisfied.
Proximate Cause
Criminal proximate cause examines whether the death was sufficiently direct and foreseeable and whether an intervening event should break responsibility.
- Intervening Medical Treatment: Ordinary medical negligence generally does not supersede the defendant's causal responsibility. A person who seriously injures another should foresee imperfect medical treatment. Only grossly abnormal treatment might break the chain in exceptional circumstances.
- Victim's Attempts to Escape: Foreseeable escape attempts generally do not break causation. If V runs into danger while reasonably fleeing D's deadly attack, the escape was a natural response to the danger D created.
- Victim Vulnerability (Eggshell Skull): The victim’s preexisting vulnerability ordinarily does not excuse the defendant. D takes the victim as the victim exists. Unexpected fragility does not defeat causation.
X. Integrated Homicide Hypothetical
"D decides to rob a store. D loads a firearm and tells accomplice C, 'If anyone interferes, I’ll do whatever it takes.' D and C enter and demand money. The clerk reaches for an alarm. D fires toward the clerk intending to kill, but misses. D and C flee. During immediate pursuit, C fires repeatedly toward an occupied apartment building to discourage police. One shot hits V. Police shoot and kill C. V goes to the hospital, where ordinary negligent medical error contributes to V’s death."
- D's shot at the clerk: Statement, weapon, and deliberate shot establish intent to kill (though clerk survived, showing D's malice).
- V's Death (Depraved Heart): Firing repeatedly into an occupied building constitutes extreme reckless indifference to human life.
- V's Death (Felony Murder): Occurs during immediate flight from robbery (BARRK) before temporary safety. The felony is independent (doesn't merge).
- V's Medical Treatment: Ordinary medical negligence does not supersede D/C's causation.
- C's Death: Police kill C. Under Agency theory, D may escape liability because the fatal shot was fired by police, not a felon. Under Proximate Cause theory, D might be liable for creating the lethal confrontation.
Chapter Summary
Homicide begins with causation and mental state. Common-law murder requires malice aforethought, which exists through four theories: Intent to kill, Intent to inflict serious bodily injury, Depraved-heart (extreme recklessness), and Felony murder.
Intent to kill may be inferred from statements, weapons, and conduct. Premeditation is a separate grading concept requiring reflection before killing; not all intentional murders are premeditated first-degree murder.
Intent to inflict serious bodily injury can support murder if death results, even without intent to kill. Depraved-heart murder requires exceptionally grave risk-taking and extreme indifference to human life, beyond ordinary manslaughter recklessness.
Felony murder requires a qualifying independent felony (avoiding the merger doctrine), occurring during commission, attempt, or immediate flight before temporary safety. Jurisdictions differ on liability for deaths caused by non-felons (Agency vs. Proximate Cause approaches).
Homicide causation requires both actual cause (acceleration of death counts) and proximate cause. Ordinary medical negligence, foreseeable escape attempts, and victim vulnerability generally do not break the causal chain.
Test each available malice theory and analyze each death separately.