Homicide Flashcards
Definition of homicide
Homicide is the killing of a living human being by another, and includes the offenses of murder and manslaughter. At common law, homicide was divided into three categories: Criminal homicides were divided into three offenses: murder, voluntary manslaughter, and involuntary manslaughter.
Causation
To prove a homicide, the prosecution must show that the defendant caused the victim’s death. The prosecution must prove both actual and proximate causation.
Actual Cause
If the victim would not have died but for the defendant’s act, then the defendant’s act is the actual cause (i.e., cause-in-fact) of the death. When the defendant sets in motion forces that led to the death of the victim, the defendant is the actual cause of the victim’s death.
Substantial Factor
Actual causation can be found when there are multiple causes, (i.e., other persons are also responsible for the victim’s death) and the defendant’s act was a substantial factor in causing the death.
Simultaneous acts by different individuals who are acting independently may each be considered the actual cause of a victim’s death, even though the victim would have died in the absence of one of the acts.
Victim’s preexisting condition
A victim’s preexisting condition that contributes to the victim’s death does not supplant the defendant’s conduct as an actual cause of the victim’s death.
Mercy Killing
Providing a person with the means by which that person can commit suicide generally does not make the provider guilty of murder as an accomplice (because suicide is not homicide) but instead guilty of a lesser crime, such as assisting a suicide. Note, however, that consent is not a defense to homicide, so a “mercy killing” (i.e.,euthanasia) can be a criminal homicide even if the person was willing to die because of a painful terminal illness.
Proximate cause
Proximate cause (i.e., legal cause) exists only when the defendant is deemed legally responsible for a homicide. For the defendant to be legally responsible for a homicide, the death must be foreseeable. A death caused by the defendant’s conduct is deemed foreseeable if death is the natural and probable result of the conduct.
Intervening acts by third parties
Actions by a third party (e.g., negligence by the doctor treating the victim), as well as actions by the victim (e.g., suicide to escape the pain that resulted from the injuries inflicted by the defendant), are generally foreseeable. However, actions by third parties will relieve the defendant of liability if they are independent of the defendant’s conduct and unforeseeable, or dependent on the defendant’s conduct and “abnormal” (i.e., not just unforeseeable, but unusual or extraordinary in hindsight).
Intervening forces of nature
Actions by a force of nature that are not within the defendant’s control are generally not foreseeable (e.g., a lightning strike that kills a victim the defendant tied to a tree). An act that accelerates death is a legal cause of that death.
Year and day
At common law, the defendant’s act was conclusively presumed not to be the proximate cause of the killing if the victim died more than one year and one day after the act was performed. Most states either have abolished this rule or have extended the time period of responsibility.
Common-law murder
i) Unlawful (i.e., without a legal excuse);
ii) Killing;
iii) Of another human being;
iv) Committed with malice aforethought.
Malice aforethought
“Malice aforethought” includes the following mental states: intent to kill, intent to inflict serious bodily injury, reckless indifference to an unjustifiably high risk to human life (depraved heart), or intent to commit certain felonies (felony murder).
Intent to kill
Conduct accompanied by the intent to kill that is the legal cause of the death of a living person constitutes intent-to-kill murder unless the legal circumstances surrounding the homicide are such that the crime is reduced to voluntary manslaughter. An inference of intent to kill may be made if a deadly weapon was used intentionally in the commission of the crime.
Intent to inflict serious bodily harm
A person who intends to do serious bodily injury or “grievous bodily harm” but actually succeeds in killing is guilty of murder despite the lack of intention to kill.
Intent to inflict serious bodily harm is an unintentional killing that results in death.
Intent to inflict serious bodily harm can be inferred from the use of a deadly weapon to inflict the bodily injury.
Depraved heart
A killing that results from reckless indifference to an unjustifiably high risk to human life is a depraved-heart murder. Depraved-heart murder is an unintentional killing that results in death.