The law on the crime of murder in the U.S. state of California is defined by sections 187 through 191 of the California Penal Code.
The United States Centers for Disease Control and Prevention reported that in the year 2020, the state had a murder rate near the median for the entire country.
Definition
The Code defines murder as "the unlawful killing of a human being, or a fetus, with malice aforethought", with the exception of abortions consented to by the mother of the fetus, where an abortion is necessary to preserve the mother's life, or when the abortion complied with the Therapeutic Abortion Act. While malice may be expressed in the form of a 'deliberate intention to take away the life of a fellow creature', it may be implied when there is no 'considerable provocation' for the killing, or when the circumstances around the killing 'show an abandoned and malignant heart'.
In California, the common law "year and a day" rule has been changed to a "three years and a day" rule. If a death occurs more than three years and one day after the act alleged to have caused it (and the act was committed on or after 1 January 1997), there is "a rebuttable presumption that the killing was not criminal", but the prosecution may seek to overcome this presumption. However, if the murder is committed by somebody who is serving a term of life imprisonment and is sentenced to state prison the year and a day rule applies instead.
Degrees
There are multiple degrees of murder in California.
Second-degree murder
Second-degree murder is any murder that does not constitute first-degree murder. First-degree murder Murder may be charged as first-degree murder if committed under the following circumstances: Armor-piercing ammunition Poison Lying in wait Torture Involving a destructive device Any other kind of willful, deliberate, and premeditated killing Perpetration of, or attempt to perpetrate arson, rape, carjacking, robbery, burglary, mayhem, kidnapping, train wrecking, or any act punishable under Section 206, 286, 287, 288, or 289, or former Section 288a Drive-by shooting, where the intent is to kill a person
Capital murder
Also known as first degree murder with special circumstances, capital murder is distinguishable from first-degree murder in that the death penalty may be imposed upon conviction. The circumstances which allow for the death penalty (If the defendant was under 18, the only penalties are life without parole or 25 years to life. Youth offender parole laws require a parole hearing after 25 years regardless of sentence imposed however.) to be imposed for murder are contained in
for financial gain (1) the defendant had previously been convicted of first or second degree murder (2) multiple murders (3) committed using explosives (4) ; (6) to avoid arrest or aiding in escaping custody (5) the victim was an on-duty peace officer; federal law enforcement officer or agent; or firefighter (7) ; (8) ; (9) the victim was a witness to a crime and the murder was committed to prevent them from testifying (10) the victim was a prosecutor or assistant prosecutor; judge or former judge; elected or appointed official; juror; and the murder was in retaliation for the victim's official duties (11) ; (12) ; (13) ; (20) the murder was "especially heinous, atrocious, or cruel, manifesting exceptional depravity" (14) the murderer lay in wait for the victim (15) the victim was intentionally killed because of their race, religion, nationality, or sexual orientation. (a hate crime) (16) the murder was committed during the committing of a robbery; kidnapping; rape; sodomy; performance of a lewd or lascivious act upon the person of a child under the age of 14 years; oral copulation; burglary; arson; train wrecking; mayhem; rape by instrument; carjacking; torture; poisoning (17), the murder was intentional and involved the infliction of torture (18) poisoning (19) the murder was committed by discharging a firearm from a motor vehicle (21) the defendant is an active member of a criminal street gang and was to further the activities of the gang (22)
In addition, aiding, abetting, counseling, commanding, inducing, soliciting, requesting, or assisting in the commission of a crime enumerated in subdivision (17), with reckless indifference to human life and as a major participant, is murder even if even if the defendant is not the actual killer.
Although technically not charged under section 187, the following crimes involving the death of a person may also lead to a death sentence.
train wrecking which leads to a person's death
fatal assault by a person under a life sentence, subject to the year and a day rule.