Penal Code 187

Murder, a charge carrying the utmost gravity in California’s legal system, is defined under Penal Code 187 PC. This statute outlines the unlawful killing of a human being or fetus with malice aforethought.
If you or someone you know is facing a murder charge, understanding the complexities of this offense and the potential defenses is paramount.
This comprehensive guide provides an in-depth analysis of California Penal Code 187 PC, including the elements of the crime, potential penalties, and legal strategies for building a strong defense.
Defining Murder Under California Law
Penal Code 187 PC defines murder as the unlawful killing of a human being or fetus with malice aforethought. To break down this definition further:
Unlawful killing:
This means the killing was not justified, such as in self-defense or in the lawful performance of duty by law enforcement.
Human being or fetus:
This includes a viable fetus, but generally excludes the killing of an unborn child during a lawful medical procedure.
Malice aforethought:
This is a crucial element of murder and refers to the mental state of the perpetrator. It can be expressed or implied and encompasses several mental states, including:
- Intent to kill
- Intent to cause serious bodily injury
- Depraved heart/conscious disregard for human life
- Felony murder rule (killing during the commission of certain felonies)
California Penal Code 187 PC defines murder as the unlawful killing of a human being or a fetus with malice aforethought. This statute establishes the legal framework for prosecuting the most serious form of homicide in California, distinguishing it from lesser offenses such as manslaughter through the requirement of malice.
Prosecutors in California bear the burden of proving three specific elements beyond a reasonable doubt to secure a conviction under PC 187.
- First, the defendant must have caused the death of another person or fetus.
- Second, the defendant must have acted with malice aforethought.
- Third, the defendant must have killed without lawful excuse or justification.
The failure to establish any single element results in the inability to sustain a murder conviction.Malice aforethought exists in two distinct forms under California law. Express malice occurs when a defendant unlawfully intends to kill the victim.
Implied malice arises when the killing results from an intentional act whose natural consequences are dangerous to human life, the defendant knew of the danger, and the defendant acted with conscious disregard for human life. Neither form of malice requires ill will or hatred toward the victim.
The statute classifies murder into two degrees based on the circumstances and mental state of the perpetrator. First-degree murder encompasses all premeditated killings, as well as murders committed through specific means including destructive devices, poison, lying in wait, torture, and during the commission of certain dangerous felonies.
Accordingly, first-degree murder carries a sentence of 25 years to life in prison. Meanwhile, second-degree murder involves willful killing without premeditation or deliberation, typically occurring when a defendant engages in extremely reckless conduct that should have been known to be lethal. Second-degree murder convictions result in sentences of 15 years to life.
Capital murder represents an elevated classification under PC 187, applying to first-degree murder with special circumstances that may result in either capital punishment or life imprisonment without the possibility of parole. Special circumstances include killing for financial gain, multiple victims, law enforcement personnel, or victims selected based on protected characteristics.
Section 187(b) contains specific exceptions regarding fetal death, exempting acts complying with abortion statutes, medically necessary procedures performed by licensed physicians, or acts by the pregnant person.
What are the elements of murder under PC 187?
Prosecution of murder under 187 california requires establishing that the defendant acted with malice aforethought, a critical mental state element that separates murder from other forms of criminal homicide. Penal Code 188 provides the statutory framework defining malice in two distinct forms, each requiring different proof standards and demonstrating different criminal intent.
Express malice
Express malice occurs when a defendant manifests a deliberate intention to unlawfully take away the life of a fellow creature. This form of malice represents the clearest manifestation of murderous intent, where the killing was purposeful rather than accidental or negligent. The prosecution must demonstrate that the defendant consciously decided to end another person’s life through intentional action.
The statutory language emphasizes the deliberate nature of the intent requirement. Express malice does not necessitate premeditation or planning, nor does it require any showing of ill will or hatred toward the specific victim.
A defendant acts with express malice when harboring a specific intent to kill, regardless of the duration of that intent or the relationship between the parties. Courts often associate express malice with first-degree murder prosecutions, where prosecutors attempt to prove willful intent to kill alongside elements of deliberation and premeditation.
Implied malice
Implied malice exists when no considerable provocation appears, or when circumstances attending the killing show an abandoned and malignant heart. California courts interpret this statutory language to mean a conscious disregard for life, where the defendant understands the potentially deadly consequences of conduct yet proceeds anyway. This form of malice permits murder convictions even absent direct intent to kill.
The prosecution must establish four elements to prove implied malice. The killing must have resulted from an intentional act whose natural consequences are dangerous to human life. The defendant must have known the act was dangerous to human life at the time of commission.
Finally, the defendant must have acted with conscious disregard for human life despite this knowledge. This standard encompasses conduct demonstrating wanton disregard, extreme indifference to the value of life, or a base antisocial motive. An act qualifies as dangerous to human life when a high probability exists that the act will result in death. Killings with implied malice constitute second-degree murder in California.
What are the degrees of murder in California?
California law classifies murder under PC 187 into distinct categories based on the defendant’s mental state, degree of planning, and circumstances surrounding the killing. These classifications determine sentencing severity and prosecution strategies.
First-degree murder
First-degree murder represents the most serious homicide classification, requiring willful, deliberate, and premeditated killing. Premeditation does not necessitate extensive planning; even brief reflection satisfies this legal standard. California law establishes five paths to first-degree conviction: using destructive devices, explosives, weapons of mass destruction, armor-piercing ammunition, or poison; lying in wait; inflicting torture pursuant to PC 206; willful, deliberate, and premeditated killing; or felony murder during specified dangerous felonies.
Drive-by shootings where intent to kill exists also constitute first-degree murder. A conviction carries a sentence of 25 years to life in state prison.
Second-degree murder
Second-degree murder encompasses any murder not meeting first-degree requirements. This category applies to intentional killings lacking premeditation or deliberation, occurring through reckless conduct the defendant should have known would likely result in death. Implied malice frequently forms the basis for second-degree charges, where extreme indifference to human life exists without deliberate planning.
Examples include shooting into crowded rooms without intent to kill specific individuals, repeat DUI offenders causing fatal accidents, or delivering fatal blows during sudden confrontations. Convictions result in sentences of 15 years to life.
Capital murder
Capital murder, formally designated as first-degree murder with special circumstances, permits imposition of capital punishment or life without parole. Penal Code 190.2 lists over 20 special circumstances elevating first-degree murder to capital status. These circumstances include killing for financial gain, multiple victims, on-duty peace officers, firefighters, prosecutors, judges, jurors, elected officials, or witnesses to prevent testimony.
Additional circumstances involve hate crimes based on race, religion, nationality, or sexual orientation, drive-by shootings, gang-related killings, and murders involving torture or poisoning.
Felony murder rule
The felony murder rule holds defendants liable for first-degree murder when death occurs during commission of specified dangerous felonies, regardless of intent to kill. First-degree felony murder applies to deaths during arson, robbery, burglary, carjacking, train wrecking, kidnapping, mayhem, torture, or certain sex crimes.
Second-degree felony murder applies to deaths during inherently dangerous felonies not listed under first-degree specifications, determined case-by-case. Defendants face charges only if they were the actual killer, aided the killer with intent, were major participants acting with reckless indifference to life, or the victim was an on-duty officer.
What are common defenses to PC 187 charges?
Defendants charged under 187 california may assert various defenses challenging either the factual basis of the prosecution’s case or the legality of evidence collection methods. These defenses range from justifications for the killing itself to procedural violations during investigation.
Self-defense or defense of others
Self-defense constitutes a complete defense when the defendant reasonably believed imminent danger of death or great bodily injury existed, reasonably believed immediate force was necessary to prevent the danger, and used no more force than reasonably necessary. California Criminal Code 3470 permits defendants to stand their ground without duty to retreat, even pursuing an assailant until danger passes.
The prosecution bears the burden of proving beyond reasonable doubt that the killing was not justified. Imperfect self-defense applies when the belief in danger was honest but unreasonable, reducing murder to voluntary manslaughter rather than resulting in acquittal.
Accident defense
Accident negates the intent element required for murder conviction when the defendant had no criminal intent, acted without criminal negligence, and engaged in lawful conduct at the time of the killing. The defense fails when the defendant committed another crime during the accidental killing.
Insanity defense
Defendants found legally insane lack the mental capacity for malice aforethought. The M’Naughten test examines whether the defendant understood the nature and quality of the act or could distinguish between right and wrong. The defendant bears the burden of proving insanity by preponderance of evidence.
Coerced confession
Courts exclude confessions obtained through coercive interrogation tactics including threats against the defendant or family, death penalty threats, or promises of leniency. Prolonged interrogations exploiting mental illness or medication withdrawal may render confessions involuntary.
Illegal search and seizure
Defense attorneys file motions to suppress evidence under Penal Code 1538.5 when law enforcement conducts searches violating Fourth Amendment protections. Successful suppression may result in charge reduction or dismissal.
Mistaken identity
Eyewitness misidentification accounts for over 75% of wrongful convictions overturned through DNA testing. Defense strategies include challenging lineup procedures, presenting alibi evidence, and employing expert witnesses to explain factors affecting eyewitness reliability.
What are the penalties for murder under PC 187?
Conviction under PC 187 subjects defendants to substantial prison terms determined by the degree of murder and presence of aggravating circumstances. California Penal Code 190 establishes the sentencing framework for murder convictions, with penalties ranging from 15 years to life imprisonment or capital punishment.
First-degree murder sentencing
First-degree murder convictions carry a sentence of 25 years to life in state prison. Defendants must serve 85% of the minimum 25-year term before parole eligibility, after which the parole board determines release. Hate crime murders based on the victim’s race, religion, gender, disability, sexual orientation, or nationality mandate life without possibility of parole. Prior murder convictions eliminate parole eligibility entirely.
Second-degree murder sentencing
Standard second-degree murder results in 15 years to life imprisonment. Enhanced sentences apply under specific circumstances: drive-by shootings resulting in death carry 20 years to life, while killing a peace officer during duty increases sentences to 25 years to life. Defendants with prior murder convictions face life without parole for subsequent second-degree convictions. Killing a peace officer with specific intent to kill, intent to cause great bodily injury, or use of a deadly weapon results in life without parole.
Capital murder sentencing
Capital murder permits either death penalty through lethal injection or life imprisonment without parole. California maintains a moratorium on executions since 2019, though prosecutors may pursue death sentences in cases involving special circumstances under Penal Code 190.2.
Additional penalties and enhancements
Firearm use during murder adds 25 years to life consecutively under Penal Code 12022.53. Gang-related murders trigger 10-year enhancements under Penal Code 186.22. Convictions also result in maximum $10,000 fines, victim restitution obligations, permanent firearm possession prohibition, and designation as a “strike” under California’s Three Strikes Law.
First-degree murder:
25 years to life in prison
Life in prison without the possibility of parole
Death penalty (in certain cases)
Second-degree murder:
15 years to life in prison
What crimes are related to PC 187 murder?
Several homicide offenses share common elements with PC 187 while differing in mental state requirements, circumstances, or means of commission. California law establishes a hierarchy of these charges based on the defendant’s intent and conduct.
Attempted murder
Attempted murder under Penal Code 664/187 occurs when a defendant takes at least one direct but ineffective step toward killing another person or fetus and intends to kill that person or fetus. The penalty is life in state prison with possibility of parole. Attempted murder also results in substantial fines, victim restitution, and a strike under California’s three-strikes law.
Voluntary manslaughter
Voluntary manslaughter involves killing another person during a sudden quarrel or in the heat of passion. Unlike first-degree murder, voluntary manslaughter does not involve malice; rather, the killing occurs spontaneously. Convictions carry three, six, or 11 years in prison.
Involuntary manslaughter
Involuntary manslaughter constitutes killing another person without malice, without intent to kill, but with conscious disregard for human life. Convictions require involvement in either an unlawful act not amounting to a felony or a lawful act involving high risk of death performed without proper caution. Sentences range from two, three, or four years in prison.
Vehicular manslaughter
Vehicular manslaughter applies to driving that kills another person through unlawful operation not amounting to a felony, lawful acts performed unlawfully, or knowingly causing accidents for financial gain. As a wobbler offense, felony vehicular manslaughter carries two to ten years in prison, while misdemeanor vehicular manslaughter carries up to one year in jail.
Watson DUI murder
Watson DUI murder represents second-degree murder charges for fatal DUI accidents under especially egregious circumstances. Prosecutors typically pursue these charges when defendants have prior DUI convictions, though courts have upheld Watson murders absent prior DUIs in cases involving grossly intoxicated drivers fleeing police at high speeds or engaging in speed contests.
Legal Defenses
If you’re facing a murder charge, there are several potential defenses that your attorney may explore, depending on the specific circumstances of your case:
Self-Defense:
If you killed someone in self-defense, you may be able to argue that your actions were justified. This defense requires that you reasonably believed you were in imminent danger of death or great bodily injury and that the force you used was necessary to defend yourself.
Accident:
If the killing was accidental and unintentional, you may be able to argue that you lacked the necessary intent for murder. This defense may be applicable in situations where the death resulted from negligence or recklessness, but not malice aforethought.
Insanity:
If you were legally insane at the time of the killing, you may be able to assert an insanity defense. This defense requires that you were unable to understand the nature and quality of your actions or that you did not know what you were doing was wrong.
False Accusations:
In some cases, individuals may be wrongly accused of murder. Your attorney can investigate the circumstances and challenge the evidence against you.
Lack of Evidence:
The prosecution has the burden of proving every element of the crime beyond a reasonable doubt. If the evidence is insufficient to support a conviction, your attorney can argue for a dismissal or acquittal.
Contact William S. Kroger for a Free Consultation
If you or someone you know is facing a murder charge in Los Angeles, contact William S. Kroger today for a free consultation. With decades of experience defending clients against serious criminal charges, William Kroger has the knowledge and expertise to provide you with aggressive and effective legal representation. He will work tirelessly to protect your rights and achieve the best possible outcome for your case.
Don’t face a murder charge alone. Contact our Beverly Hills office today and take the first step towards protecting your future.

