UBE Homicide
Last updated: May 2, 2026
Homicide questions are one of the highest-leverage areas to study for the UBE. This guide breaks down the rule, the elements you need to recognize, the named traps that catch most students, and a memory aid that scales to test day. Read it once, then practice the same sub-topic adaptively in the app.
The rule
Homicide is the unlawful killing of another human being. At common law, murder is a killing committed with malice aforethought — meaning (1) intent to kill, (2) intent to inflict grievous bodily harm, (3) reckless indifference to an unjustifiably high risk to human life ('depraved-heart'), or (4) intent to commit an inherently dangerous felony (felony murder). First-degree murder requires a statutory aggravator (typically premeditation/deliberation or an enumerated felony); all other murder is second-degree. Voluntary manslaughter is an intentional killing committed in the heat of passion upon adequate provocation; involuntary manslaughter is an unintentional killing by criminal negligence or during commission of an unlawful act (misdemeanor manslaughter). The Model Penal Code (§ 210.2) replaces malice with four mental states — purpose, knowledge, recklessness, and negligence — defining murder as a killing committed purposely, knowingly, or recklessly under circumstances manifesting extreme indifference to human life.
Elements breakdown
Common-Law Murder
An unlawful killing of another human being committed with malice aforethought.
- Unlawful killing of a human being
- Caused by defendant's act or omission
- With malice aforethought (one of four forms)
- Without legal justification or excuse
Common examples:
- Intent-to-kill murder
- Intent-to-inflict-grievous-bodily-harm murder
- Depraved-heart (reckless indifference) murder
- Felony murder
First-Degree Murder
A murder elevated by a statutory aggravator — typically premeditation and deliberation, or commission during an enumerated felony.
- All elements of common-law murder
- Plus a statutory aggravator
- Premeditation: defendant reflected on the act
- Deliberation: defendant acted with cool purpose
Second-Degree Murder
Any murder that is not first-degree — the residual murder category covering intent-to-kill killings without premeditation, intent-to-cause-grievous-bodily-harm killings, and depraved-heart killings.
- Killing with malice aforethought
- Not committed with premeditation/deliberation
- Not committed during an enumerated felony
- No adequate provocation reducing to manslaughter
Felony Murder
A killing — even an accidental one — that occurs during the commission or attempted commission of an inherently dangerous felony is murder.
- Defendant committed or attempted an inherently dangerous felony
- A death was caused during the felony or immediate flight
- Death was a foreseeable result of the felony
- Felony was independent of the killing (merger doctrine)
Common examples:
- BARRK felonies: Burglary, Arson, Robbery, Rape, Kidnapping
- Death of co-felon by police (split: agency vs. proximate cause)
- Death after defendant reaches a point of temporary safety (cuts off liability)
Voluntary Manslaughter
An intentional killing that would otherwise be murder, mitigated because committed in the heat of passion upon adequate provocation.
- Intentional killing
- Adequate provocation (would inflame a reasonable person)
- Defendant was actually provoked
- No reasonable cooling-off period elapsed
- Defendant did not in fact cool off
Involuntary Manslaughter
An unintentional killing committed with criminal negligence or during the commission of an unlawful act not amounting to a felony.
- Unintentional killing
- Caused by criminal (gross) negligence, OR
- Caused during a misdemeanor or non-dangerous felony
- Causation: actual and proximate cause of death
MPC Murder (§ 210.2)
Under the Model Penal Code, criminal homicide is murder when committed purposely or knowingly, or recklessly under circumstances manifesting extreme indifference to the value of human life.
- Defendant caused death of another
- Acted purposely or knowingly, OR
- Acted recklessly with extreme indifference to human life
- Extreme indifference presumed during enumerated felonies
MPC Manslaughter (§ 210.3)
Under the MPC, homicide is manslaughter when committed recklessly, or when a homicide that would otherwise be murder is committed under the influence of extreme mental or emotional disturbance for which there is reasonable explanation or excuse.
- Defendant caused death recklessly, OR
- Killing under extreme mental or emotional disturbance (EMED)
- Reasonable explanation/excuse from defendant's viewpoint
- No requirement of sudden provocation
Common patterns and traps
The Premeditation-Time-Confusion Trap
Candidates assume premeditation requires a long period of planning. Most jurisdictions hold that premeditation can be formed in seconds — what matters is whether the defendant actually reflected on the killing, not how long the reflection took. The MBE will offer two facts: a brief pause (defendant raises gun, hesitates, fires) and a long fight (defendant grappled for ten minutes before stabbing). The first can be premeditated; the second often is not.
A wrong choice says 'not first-degree because the killing happened in the span of three seconds' — wrong because premeditation is qualitative, not quantitative.
The Felony-Murder Merger Cut
The merger doctrine bars using a felony that is an integral part of the homicide itself — typically aggravated assault or battery — as the felony-murder predicate. The predicate must be independent (BARRK felonies qualify; assault does not). Candidates miss this because the facts will describe a violent attack that meets aggravated-assault elements; the trap choice will recite felony murder, but the proper charge is murder under traditional malice analysis or manslaughter.
A wrong choice says 'guilty of felony murder because aggravated assault was the predicate felony' — wrong because the assault merges into the homicide.
The Provocation-by-Words-Only Trap
At common law, mere words — even cruel, taunting, or confessional words — are not adequate provocation to reduce murder to voluntary manslaughter. Adequate provocation traditionally requires a serious battery, mutual combat, or discovering a spouse in flagrante delicto. The MEE/MBE will tempt you with extremely inflammatory verbal conduct (a confession of infidelity, a racial slur) and a heat-of-passion killing that follows.
A wrong choice says 'voluntary manslaughter because the victim's confession provoked the defendant' — wrong because words alone are not adequate provocation at common law.
The Depraved-Heart-vs-Negligence Cut
Depraved-heart murder requires conscious disregard of an unjustifiably high risk to human life, while involuntary manslaughter requires only criminal (gross) negligence. The dividing line is subjective awareness: did the defendant know the risk was extreme and ignore it? Firing a gun into an occupied dwelling without aiming is depraved-heart; texting while driving and causing a fatal collision is typically involuntary manslaughter.
A wrong choice labels a 'should have known the risk' fact pattern as depraved-heart murder — wrong because the standard is conscious awareness, not constructive knowledge.
The MPC-vs-Common-Law Framework Slip
When facts trigger the MPC (extreme mental or emotional disturbance, recklessness with extreme indifference, the four mental states), you must use MPC labels. Candidates default to common-law terminology and miss the broader MPC mitigation: EMED has no 'sudden' or 'reasonable cooling time' requirement and accepts a longer-developing emotional disturbance.
A wrong choice rejects voluntary manslaughter because two days passed between provocation and killing — correct under common law, wrong under the MPC's EMED standard.
How it works
Start by sorting the mental state. If the defendant intended to kill, you are in murder territory and must ask whether premeditation and deliberation elevate it to first-degree. If a sudden provocation triggered the killing — a spouse caught in adultery, a serious battery on the defendant — voluntary manslaughter is on the table, but only if a reasonable person would have been inflamed and the defendant did not cool off. If the killing was unintended, ask whether the conduct was so reckless it manifested 'depraved heart' indifference (second-degree murder) or merely criminally negligent (involuntary manslaughter). Felony murder is the wildcard: any death — even an accidental shooting by a co-felon, even a heart attack suffered by a robbery victim — caused during a BARRK felony is murder, full stop, provided the felony is independent of the killing (the merger doctrine bars using the assault that caused death as the predicate). On the MEE, label which framework you are using (common-law or MPC) and run the analysis under that framework consistently.
Worked examples
What is Reyes most likely guilty of?
- A First-degree murder, because Reyes had time to reflect when he walked to his car and retrieved the tire iron. ✓ Correct
- B Second-degree murder, because Reyes intended to kill but acted in immediate response to Patel's insults.
- C Voluntary manslaughter, because Patel's repeated insults about Reyes's mother were adequate provocation.
- D Involuntary manslaughter, because Reyes's act of striking with a tire iron showed reckless disregard rather than intent.
Why A is correct: Reyes intentionally killed Patel after a deliberate, multi-step sequence — walking to the car, retrieving a weapon, returning, striking — giving him ample opportunity to reflect on the killing. That satisfies premeditation and deliberation, elevating intent-to-kill murder to first-degree. Words alone, even cruel ones about a deceased parent, are not adequate provocation at common law, so voluntary manslaughter is unavailable.
Why each wrong choice fails:
- B: Reyes did not act in immediate response — he left, armed himself, and returned. That sequence supplies premeditation and a cooling-off period that defeats any heat-of-passion theory. (The Premeditation-Time-Confusion Trap)
- C: At common law, words alone are not adequate provocation regardless of how offensive they are; this rule has been heavily tested and is the crux of the trap. (The Provocation-by-Words-Only Trap)
- D: Reyes intentionally struck Patel in the head with a tire iron three times — that is intent to kill or at minimum intent to inflict grievous bodily harm. Involuntary manslaughter requires unintentional killing. (The Depraved-Heart-vs-Negligence Cut)
Is Liu guilty of felony murder for the cashier's death?
- A No, because Liu's gun was unloaded and he never used physical force.
- B No, because a heart attack is too remote a consequence to satisfy proximate causation.
- C Yes, because the cashier's death occurred during the commission of an armed robbery and was a foreseeable result. ✓ Correct
- D Yes, but only if the prosecution proves Liu knew of the cashier's heart condition.
Why C is correct: Robbery is a BARRK felony — an inherently dangerous, independent felony that satisfies the felony-murder predicate. A death during the felony, even one caused by a victim's underlying medical condition triggered by the stress of the crime, is felony murder so long as the death was foreseeable. Pointing a firearm at an elderly cashier creates a foreseeable risk that the victim could suffer a fatal cardiac event; defendants take their victims as they find them.
Why each wrong choice fails:
- A: Felony murder does not require that the defendant personally inflict physical force or use a loaded weapon — it requires that a death occur during the felony. The unloaded status of the gun does not break causation.
- B: This invokes the eggshell-victim issue; criminal law follows the take-your-victim-as-you-find-him rule on proximate cause, so a victim's pre-existing vulnerability does not break the causal chain. (The Felony-Murder Merger Cut)
- D: Felony murder is a strict-liability-as-to-result doctrine — the prosecution need not prove the defendant foresaw the specific harm or knew of the victim's vulnerabilities, only that a death foreseeably resulted from the dangerous felony.
Under the MPC, what is the strongest theory supporting Chen's murder conviction?
- A Chen acted purposely, because she intentionally fired the gun.
- B Chen acted knowingly, because she was practically certain her conduct would cause death.
- C Chen acted recklessly under circumstances manifesting extreme indifference to human life. ✓ Correct
- D Chen acted negligently, because a reasonable person would have foreseen the risk.
Why C is correct: MPC § 210.2(1)(b) defines murder as a homicide committed recklessly under circumstances manifesting extreme indifference to the value of human life. Chen consciously disregarded a substantial and unjustifiable risk — firing a loaded weapon inside a residential building where she knew people lived above — and that conduct manifests extreme indifference. She did not act purposely (she did not want to kill anyone) or knowingly (she was not practically certain death would result), so the depraved-heart-equivalent recklessness theory is the correct fit.
Why each wrong choice fails:
- A: Purpose under the MPC requires conscious object to cause the result; Chen wanted to frighten her ex-husband, not kill anyone, so her mental state was not purposeful as to death. (The MPC-vs-Common-Law Framework Slip)
- B: Knowledge requires practical certainty that the result will occur. Firing through a ceiling carries serious risk, but it is not practically certain to kill — making this the wrong MPC mental state. (The MPC-vs-Common-Law Framework Slip)
- D: Negligence supports negligent homicide under MPC § 210.4, not murder. Negligence is the lowest mental state and requires only that the defendant should have been aware of the risk — not the conscious disregard plus extreme indifference required for murder. (The Depraved-Heart-vs-Negligence Cut)
Memory aid
Felony-murder predicates = BARRK (Burglary, Arson, Robbery, Rape, Kidnapping). Provocation must be 'inflame, not cooled, no cooling time' — three checkboxes. Murder mens rea = 'I-I-R-F': Intent to kill, Intent to GBI, Reckless indifference (depraved heart), Felony murder.
Key distinction
The cleanest cut is between depraved-heart second-degree murder and criminally-negligent involuntary manslaughter: both involve unintended deaths from reckless conduct, but depraved-heart requires a subjective awareness of an unjustifiably high risk to human life — gross negligence is not enough. The MBE will give you a fact pattern (firing into an occupied building, dropping concrete from an overpass) and ask you to choose between them; the dispositive question is whether the defendant consciously disregarded a known risk so extreme it equals malice.
Summary
Sort by mens rea (intent, GBI, depraved-heart, felony), elevate to first-degree only with premeditation or an enumerated felony, mitigate to voluntary manslaughter only when adequate provocation + no cooling, and run felony murder through BARRK with merger and foreseeability checks.
Practice homicide adaptively
Reading the rule is the start. Working UBE-format questions on this sub-topic with adaptive selection, watching your mastery score climb in real time, and seeing the items you missed return on a spaced-repetition schedule — that's where score lift actually happens. Free for seven days. No credit card required.
Start your free 7-day trialFrequently asked questions
What is homicide on the UBE?
Homicide is the unlawful killing of another human being. At common law, murder is a killing committed with malice aforethought — meaning (1) intent to kill, (2) intent to inflict grievous bodily harm, (3) reckless indifference to an unjustifiably high risk to human life ('depraved-heart'), or (4) intent to commit an inherently dangerous felony (felony murder). First-degree murder requires a statutory aggravator (typically premeditation/deliberation or an enumerated felony); all other murder is second-degree. Voluntary manslaughter is an intentional killing committed in the heat of passion upon adequate provocation; involuntary manslaughter is an unintentional killing by criminal negligence or during commission of an unlawful act (misdemeanor manslaughter). The Model Penal Code (§ 210.2) replaces malice with four mental states — purpose, knowledge, recklessness, and negligence — defining murder as a killing committed purposely, knowingly, or recklessly under circumstances manifesting extreme indifference to human life.
How do I practice homicide questions?
The fastest way to improve on homicide is targeted, adaptive practice — working questions that focus on your specific weak spots within this sub-topic, getting immediate feedback, and revisiting items you missed on a spaced-repetition schedule. Neureto's adaptive engine does this automatically across the UBE; start a free 7-day trial to see your sub-topic mastery climb in real time.
What's the most important distinction to remember for homicide?
The cleanest cut is between depraved-heart second-degree murder and criminally-negligent involuntary manslaughter: both involve unintended deaths from reckless conduct, but depraved-heart requires a subjective awareness of an unjustifiably high risk to human life — gross negligence is not enough. The MBE will give you a fact pattern (firing into an occupied building, dropping concrete from an overpass) and ask you to choose between them; the dispositive question is whether the defendant consciously disregarded a known risk so extreme it equals malice.
Is there a memory aid for homicide questions?
Felony-murder predicates = BARRK (Burglary, Arson, Robbery, Rape, Kidnapping). Provocation must be 'inflame, not cooled, no cooling time' — three checkboxes. Murder mens rea = 'I-I-R-F': Intent to kill, Intent to GBI, Reckless indifference (depraved heart), Felony murder.
What's a common trap on homicide questions?
Mistaking premeditation for time elapsed rather than reflection
What's a common trap on homicide questions?
Applying felony-murder predicate that merges (assault, battery)
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