First-Degree Murder Lawyers in San Diego (PC 189)

A first-degree murder charge carries 25 years to life in state prison — and that’s before special circumstances, firearm enhancements, or gang allegations enter the picture. If you or a loved one is facing this charge, the time to act is now. Call our defense team 24/7.

Being accused of murder is the most serious situation a person can face in the California criminal justice system. We get it. The weight of what’s happening — the fear, the uncertainty, the feeling that your entire world has been turned upside down — is unlike anything else.

Good people find themselves charged with first-degree murder. A confrontation that escalated beyond anyone’s intention. A case of mistaken identity fueled by unreliable eyewitnesses. An allegation built on the word of a co-defendant trying to save themselves. A felony murder theory that holds someone responsible for a death they never intended and never caused. The reality is, the circumstances behind a murder charge are rarely as straightforward as the prosecution wants a jury to believe.

The outcome is not predetermined. What does that mean? Well, it means that between where you are right now and a final resolution, there are critical decisions to be made — decisions about investigation, about legal strategy, about challenging the prosecution’s theory at every stage. Control what you can control, and the single most important thing you can control right now is who stands next to you in that courtroom.

Our firm has defended clients charged with murder in San Diego County — from cases built on circumstantial evidence to cases involving special circumstance allegations. We know the San Diego District Attorney’s Homicide Unit, we know the judges who handle these cases in the Central Division, and we know what it takes to fight a murder charge at the highest levels.

The prosecution is building their case right now. Every day that passes without an experienced defense lawyer is a day the other side moves forward unopposed.

Call us 24/7 for a case evaluation.

Quick Reference — PC 189 First-Degree Murder

Element	Details
Classification	Felony — cannot be reduced
Standard Sentence	25 years to life in state prison
Special Circumstances (PC 190.2)	Life without parole (LWOP) or death
Firearm Enhancement (PC 12022.53(d))	Additional 25 years to life, consecutive
Strike Offense	Yes — serious and violent felony
Custody Credits	Limited (if any) custody credits under PC 2933.1
Statute of Limitations	None — murder has no statute of limitations
Bail	Typically no bail or $1 million to $5 million+

What Is First-Degree Murder Under California Law?

Murder in California is defined as “the unlawful killing of a human being, or a fetus, with malice aforethought.”¹ That definition covers all murder — first degree and second degree. The distinction between the two is what separates a 15-years-to-life sentence from a 25-years-to-life sentence, and in some cases, from life without the possibility of parole.

So what makes a killing first-degree murder rather than second degree? Under Penal Code Section 189, first-degree murder includes killings that fall into one of three categories.²

Willful, Deliberate, and Premeditated Killing

This is the most commonly charged theory. The prosecution argues that the defendant intended to kill, carefully weighed the decision, and made that decision before acting. The key word here is “deliberate” — for all intents and purposes, the prosecution must show that the defendant reflected on the choice to kill, not that they simply acted in the moment.³

An important point: premeditation does not require days, hours, or even minutes of planning. California courts have held that a cold, calculated decision to kill can be arrived at quickly.⁴ The test is the extent of the reflection, not the length of time.

Killing by Specified Means

First-degree murder also includes any murder perpetrated by poison, lying in wait, torture, a destructive device or explosive, a weapon of mass destruction, or armor-piercing ammunition designed primarily to penetrate metal or armor.⁵

Felony Murder

A killing that occurs during the commission of certain dangerous felonies — including arson, rape, carjacking, robbery, burglary, mayhem, kidnapping, and specified sex offenses — is automatically first-degree murder, even if the defendant never intended to kill anyone.⁶ This is the felony murder rule, and it is one of the most powerful tools in the prosecution’s arsenal. We address the significant recent changes to this rule below.

How First-Degree Murder Differs from Second-Degree Murder

All murder that does not qualify as first-degree is second-degree murder under California law.⁷ Second-degree murder carries a sentence of 15 years to life — still extraordinarily serious, but meaningfully different from 25 to life. In many first-degree murder cases, one of the most realistic and effective defense strategies is challenging the prosecution’s evidence of premeditation and deliberation to reduce the charge to second degree.

How the Prosecution Proves First-Degree Murder

To secure a first-degree murder conviction, the prosecution must prove every element beyond a reasonable doubt. What does that look like? It depends on which theory they’re pursuing.

Elements of Murder (All Degrees)

Under CALCRIM No. 520, the prosecution must first prove the basic elements of murder⁸:

1. The defendant committed an act that caused the death of another person

2. When the defendant acted, the defendant had a state of mind called malice aforethought

3. The defendant killed without lawful excuse or justification

Malice aforethought — basically, this is the mental state that separates murder from manslaughter. It can be express (a deliberate intention to kill) or implied (an intentional act, the natural consequences of which are dangerous to human life, performed with knowledge of and conscious disregard for that danger).⁹

Elevating to First Degree: Premeditation

If the prosecution proceeds on a premeditation theory, they must additionally prove under CALCRIM No. 521 that the killing was¹⁰:

1. Willful — the defendant intended to kill

2. Deliberate — the defendant carefully weighed the considerations for and against the choice and, knowing the consequences, decided to kill

3. Premeditated — the defendant decided to kill before completing the act that caused death

The California Supreme Court in People v. Anderson identified three categories of evidence typically used to prove premeditation: planning activity, motive, and the manner of the killing.¹¹ A strong defense examines each category and challenges whether the evidence actually supports deliberation — or whether it is equally consistent with an impulsive, unplanned act.

Elevating to First Degree: Felony Murder

If the prosecution proceeds on a felony murder theory, the elements are different. Under CALCRIM No. 540A, the prosecution must prove¹²:

1. The defendant committed or attempted to commit one of the felonies enumerated in PC 189

2. During the commission or attempted commission of that felony, the defendant caused the death of another person

The critical difference: under felony murder, the prosecution does not need to prove the defendant intended to kill. The intent to commit the underlying felony is sufficient. This makes felony murder allegations particularly dangerous — and particularly important to defend against aggressively.

Felony Murder Reform: SB 1437 and What It Means for Your Case

Senate Bill 1437, enacted in 2018, fundamentally changed who can be convicted of felony murder in California. This is one of the most significant developments in California murder law in decades, and it creates defense opportunities that did not exist before.

What Changed

Before SB 1437, anyone involved in a qualifying felony could be convicted of first-degree murder if someone died during that felony — even if they had no intent to kill and were not the person who caused the death. The law also allowed murder convictions under the “natural and probable consequences” doctrine, meaning an accomplice to one crime could be convicted of murder if a killing was a foreseeable result of that crime.

SB 1437 eliminated the natural and probable consequences doctrine as a basis for murder liability entirely.¹³ It also narrowed felony murder so that a participant in a qualifying felony can only be convicted of first-degree felony murder if¹⁴:

• They were the actual killer; or
• They were not the actual killer but, with the intent to kill, aided, abetted, counseled, commanded, induced, solicited, requested, or assisted the actual killer; or
• They were a major participant in the underlying felony and acted with reckless indifference to human life

The Banks/Clark Factors

What does “major participant” and “reckless indifference to human life” actually mean? The California Supreme Court defined these terms in two landmark cases.

In People v. Banks, the Court identified factors for evaluating whether a defendant was a “major participant,” including the defendant’s role in planning the crime, their role in supplying or using weapons, their awareness of dangers posed by the crime, and whether they were present at the scene.¹⁵

In People v. Clark, the Court identified factors for “reckless indifference to human life,” including the defendant’s knowledge of weapons and their use, their physical presence at the crime, the duration of the felony, the defendant’s knowledge of a co-participant’s likelihood of killing, and the defendant’s efforts to minimize the risk of violence.¹⁶

These factors give the defense concrete, specific arguments to challenge felony murder liability for defendants who were not the actual killer.

Resentencing Under PC 1172.6

Senate Bill 775 (2021) clarified the process for people previously convicted under the old felony murder or natural and probable consequences theories.¹⁷ If you or a loved one was convicted of murder under a theory that would no longer support a conviction under current law, a petition for resentencing may be filed under Penal Code Section 1172.6. At the hearing, the prosecution must prove beyond a reasonable doubt that the petitioner is guilty of murder under the current law.¹⁸

The bottom line is this: SB 1437 and SB 775 created meaningful paths to relief for people convicted under theories of murder liability that California no longer recognizes. If this applies to your situation, it is essential that you consult with an experienced defense attorney who understands these provisions.

Special Circumstances: When First-Degree Murder Becomes a Capital Case

Not all first-degree murder charges are the same. When the prosecution alleges “special circumstances” under Penal Code Section 190.2, the stakes escalate dramatically — from 25 years to life to life without the possibility of parole (LWOP) or, in theory, the death penalty.¹⁹

What Are Special Circumstances?

Special circumstances are specific factual allegations that, if proven true, make a first-degree murder conviction eligible for LWOP or death. They include²⁰:

• Murder for financial gain — the killing was carried out for money, insurance, or other financial benefit
• Multiple murders — the defendant is convicted of more than one murder in the same proceeding
• Murder by lying in wait — the defendant concealed their purpose and waited for an opportunity to kill
• Murder of a peace officer, firefighter, or witness — the victim was targeted because of their role
• Felony murder special circumstance — the murder occurred during the commission of an enumerated felony (robbery, kidnapping, rape, arson, burglary, carjacking, and others)
• Drive-by shooting murder — the killing was committed by shooting from a motor vehicle
• Gang-related murder — the murder was carried out to further the activities of a criminal street gang
• Racially motivated murder — the victim was selected because of race, color, religion, nationality, or country of origin

How Special Circumstances Change the Case

When special circumstances are alleged, the trial effectively becomes two trials. First, the jury determines guilt on the murder charge and the truth of the special circumstance allegations. If the defendant is found guilty of first-degree murder with special circumstances proven true, a separate penalty phase follows where the jury decides between LWOP and death.²¹

This changes everything about trial strategy — from jury selection to the presentation of evidence to the types of experts retained. Defending a special circumstances case requires attorneys who have handled capital and LWOP cases and understand the unique demands of penalty phase litigation.

Note: California currently has a moratorium on executions under Governor Newsom’s executive order (March 2019), but LWOP sentences remain actively imposed by courts throughout the state.

Penalties for First-Degree Murder in California

Circumstance	Sentence
First-degree murder (standard)	25 years to life in state prison
With special circumstances (PC 190.2)	LWOP or death
With personal firearm use (PC 12022.53(b))	Additional 10 years consecutive
With personal firearm discharge (PC 12022.53(c))	Additional 20 years consecutive
With firearm discharge causing death (PC 12022.53(d))	Additional 25 years to life consecutive
With gang enhancement (PC 186.22(b))	Additional 15 years to life
With prior serious felony (PC 667(a)(1))	Additional 5 years per prior

A standard first-degree murder conviction means a minimum of 25 years in state prison before becoming parole eligible — and under Penal Code Section 2933.1, persons convicted of violent felonies receive limited (if any) custody credits.²² In practice, the Board of Parole Hearings often denies parole at the first eligible hearing.

When firearm enhancements are added, the numbers compound. A first-degree murder conviction with a PC 12022.53(d) enhancement — personal and intentional discharge of a firearm causing death — carries a sentence of 50 years to life.²³ For all intents and purposes, that is a life sentence.

Youth Offender Parole Provisions

For defendants who were under the age of 26 at the time of the offense, Penal Code Section 3051 provides for a youth offender parole hearing during the 15th, 20th, or 25th year of incarceration, depending on the controlling offense.²⁴ This provision reflects California’s recognition that young people have a greater capacity for change. It does not reduce the sentence imposed, but it creates an earlier opportunity for parole consideration.

Defense Strategies for First-Degree Murder Charges

Every murder case is different, and the defense strategy must be built around the specific facts, evidence, and prosecution theory in your case. We can, and will, challenge the prosecution’s case at every stage if the facts support a position to do so. The following are defense approaches our team evaluates in first-degree murder cases.

Challenge Premeditation and Deliberation

This is often the most critical battleground. If the prosecution cannot prove that the killing was willful, deliberate, and premeditated, a first-degree murder conviction cannot stand on a premeditation theory. Evidence of impulsive behavior, emotional provocation, intoxication, or a compressed time frame between provocation and action can negate deliberation.²⁵ A successful challenge here reduces the charge to second-degree murder — 15 years to life rather than 25 to life.

Voluntary Manslaughter: Heat of Passion

If the defendant killed during a sudden quarrel or in the heat of passion after legally adequate provocation, the charge may be reduced to voluntary manslaughter under Penal Code Section 192, subdivision (a).²⁶ The provocation must be such that a reasonable person of average disposition would have been provoked to act rashly and without deliberation.²⁷ Voluntary manslaughter carries a sentence of 3, 6, or 11 years — dramatically less than 25 to life.

Imperfect Self-Defense

If the defendant actually but unreasonably believed they were in imminent danger of death or great bodily injury, and actually but unreasonably believed that deadly force was necessary to defend against that danger, the killing is voluntary manslaughter — not murder.²⁸ This is a partial defense that negates malice. The belief must be genuine, even if a reasonable person would not have shared it.

Complete Self-Defense or Defense of Others

A complete defense. If the defendant reasonably believed they or another person were in imminent danger of being killed or suffering great bodily injury, reasonably believed that the immediate use of deadly force was necessary to defend against that danger, and used no more force than was reasonably necessary, the killing is justified.²⁹ This results in acquittal — not a reduction, but a full defense to the charge.

Challenge the Felony Murder Theory

Where the prosecution proceeds on a felony murder theory, the defense can argue under the SB 1437 framework that the defendant was not the actual killer, did not act with intent to kill, and was not a major participant who acted with reckless indifference to human life under the Banks and Clark factors.^{30 31} This defense is particularly powerful for defendants charged as accomplices or co-participants.

Mistaken Identity

In cases built on eyewitness identification, circumstantial evidence, or gang affiliation, challenging the identification of the defendant as the actual perpetrator can be decisive. Alibi evidence, surveillance footage, cell phone location data, DNA evidence, and expert testimony on the unreliability of eyewitness identification are all tools available to the defense.³²

Insufficient Circumstantial Evidence

Where the case is built on circumstantial evidence, the jury must be instructed that if two reasonable interpretations of the evidence exist — one pointing to guilt and one pointing to innocence — the jury must adopt the interpretation pointing to innocence.³³ This standard gives the defense a powerful framework for arguing that the prosecution has not met its burden.

Mental Health Defenses

California law provides several avenues where mental health may affect a murder case. Evidence of voluntary intoxication or mental disorder may negate the specific intent required for first-degree murder — specifically, the premeditation and deliberation elements — potentially reducing the charge to second degree.³⁴ Separately, a defendant who did not understand the nature and quality of the act, or could not distinguish right from wrong, may assert a not guilty by reason of insanity defense under Penal Code Section 25, subdivision (b).³⁵

The Murder Case Process in San Diego

What happens after an arrest for murder in San Diego County? For families and defendants, understanding the process reduces uncertainty and helps you make better decisions at each stage.

Arrest, Booking, and Initial Custody

After arrest, the defendant is booked into San Diego Central Jail. Murder charges typically carry no bail or bail set between $1 million and $5 million or more. Under In re Humphrey, the court must consider the defendant’s ability to pay when setting bail, but release on murder charges remains rare.³⁶

Arraignment

The defendant must be arraigned within 48 hours of arrest (excluding weekends and holidays). At arraignment, the charges are formally read, and the defendant enters a plea. For murder cases, the case is typically assigned to the Central Division of San Diego Superior Court at the Hall of Justice.

Preliminary Hearing

At the preliminary hearing, a judge determines whether there is sufficient evidence to hold the defendant for trial. In murder cases, preliminary hearings tend to be longer and more contested than in other felony cases. This is a critical stage — experienced defense attorneys use the preliminary hearing strategically to lock in witness testimony under oath, identify weaknesses in the prosecution’s case, and challenge the sufficiency of evidence.

Pretrial Motions and Trial Preparation

Murder cases involve extensive pretrial litigation — motions to suppress evidence, motions to exclude witness testimony, motions challenging the admissibility of forensic evidence, and motions in limine to shape what the jury will and will not hear. The San Diego District Attorney’s Homicide Unit handles all murder prosecutions, and these are experienced prosecutors. The defense must match that level of preparation.

Trial

Murder trials in San Diego County are typically assigned to experienced judges in the Central Division regardless of where the crime occurred. Jury selection in a murder case is a meticulous process — particularly in special circumstances cases where LWOP or death is at stake. The trial itself can last weeks or even months depending on the complexity of the evidence.

Facing First-Degree Murder Charges in San Diego?

The bottom line is this: a first-degree murder charge is the most serious allegation in California’s criminal justice system, and it demands a defense team that knows how to handle these cases at the highest levels. Our firm has defended murder cases in San Diego County — from challenging premeditation to fighting special circumstance allegations to pursuing relief under SB 1437. The Firm has continuously been recognized for its excellence inside the courtroom and in the San Diego community by reputable organizations like the Better Business Bureau, SuperLawyers, Martindale Hubbell, and the San Diego Business Journal.

The prosecution has the resources of the state behind them. You need attorneys who will actually take cases to a jury when that is what the situation demands. Protect your freedom and your future — know your rights.

Call us 24/7 at (619) 295-3555 for a case evaluation.

References

1. 1. Penal Code, § 187, subd. (a) [“Murder is the unlawful killing of a human being, or a fetus, with malice aforethought.”]↑ Penal Code, § 187, subd. (a) [“Murder is the unlawful killing of a human being, or a fetus, with malice aforethought.”]
2. 2. Penal Code, § 189, subd. (a).↑ Penal Code, § 189, subd. (a).
3. 3. See CALCRIM No. 521 [First Degree Murder].↑ See CALCRIM No. 521 [First Degree Murder].
4. 4. See People v. Anderson (1968) 70 Cal.2d 15.↑ See People v. Anderson (1968) 70 Cal.2d 15.
5. 5. Penal Code, § 189, subd. (a).↑ Penal Code, § 189, subd. (a).
6. 6. Penal Code, § 189, subd. (a).↑ Penal Code, § 189, subd. (a).
7. 7. Penal Code, § 189, subd. (b).↑ Penal Code, § 189, subd. (b).
8. 8. See CALCRIM No. 520 [First or Second Degree Murder With Malice Aforethought].↑ See CALCRIM No. 520 [First or Second Degree Murder With Malice Aforethought].
9. 9. Penal Code, § 188, subds. (a)(1)-(a)(2).↑ Penal Code, § 188, subds. (a)(1)-(a)(2).
10. 10. See CALCRIM No. 521 [First Degree Murder].↑ See CALCRIM No. 521 [First Degree Murder].
11. 11. People v. Anderson (1968) 70 Cal.2d 15.↑ People v. Anderson (1968) 70 Cal.2d 15.
12. 12. See CALCRIM No. 540A [Felony Murder: First Degree — Defendant Allegedly Committed Fatal Act].↑ See CALCRIM No. 540A [Felony Murder: First Degree — Defendant Allegedly Committed Fatal Act].
13. 13. Penal Code, § 188, subd. (a)(3), as amended by Senate Bill 1437 (2018).↑ Penal Code, § 188, subd. (a)(3), as amended by Senate Bill 1437 (2018).
14. 14. Penal Code, § 189, subd. (e).↑ Penal Code, § 189, subd. (e).
15. 15. People v. Banks (2015) 61 Cal.4th 788.↑ People v. Banks (2015) 61 Cal.4th 788.
16. 16. People v. Clark (2016) 63 Cal.4th 522.↑ People v. Clark (2016) 63 Cal.4th 522.
17. 17. Senate Bill 775 (2021), codified at Penal Code, § 1172.6.↑ Senate Bill 775 (2021), codified at Penal Code, § 1172.6.
18. 18. Penal Code, § 1172.6, subd. (d)(3).↑ Penal Code, § 1172.6, subd. (d)(3).
19. 19. Penal Code, § 190.2.↑ Penal Code, § 190.2.
20. 20. Penal Code, § 190.2.↑ Penal Code, § 190.2.
21. 21. Penal Code, § 190.3.↑ Penal Code, § 190.3.
22. 22. Penal Code, § 2933.1.↑ Penal Code, § 2933.1.
23. 23. Penal Code, § 12022.53, subd. (d).↑ Penal Code, § 12022.53, subd. (d).
24. 24. Penal Code, § 3051.↑ Penal Code, § 3051.
25. 25. See CALCRIM No. 521 [First Degree Murder].↑ See CALCRIM No. 521 [First Degree Murder].
26. 26. Penal Code, § 192, subd. (a).↑ Penal Code, § 192, subd. (a).
27. 27. See CALCRIM No. 570 [Voluntary Manslaughter: Heat of Passion — Lesser Included Offense].↑ See CALCRIM No. 570 [Voluntary Manslaughter: Heat of Passion — Lesser Included Offense].
28. 28. See CALCRIM No. 571 [Voluntary Manslaughter: Imperfect Self-Defense — Lesser Included Offense].↑ See CALCRIM No. 571 [Voluntary Manslaughter: Imperfect Self-Defense — Lesser Included Offense].
29. 29. See CALCRIM No. 505 [Justifiable Homicide: Self-Defense or Defense of Another].↑ See CALCRIM No. 505 [Justifiable Homicide: Self-Defense or Defense of Another].
30. 30. People v. Banks (2015) 61 Cal.4th 788.↑ People v. Banks (2015) 61 Cal.4th 788.
31. 31. People v. Clark (2016) 63 Cal.4th 522.↑ People v. Clark (2016) 63 Cal.4th 522.
32. 32. See CALCRIM No. 315 [Eyewitness Identification].↑ See CALCRIM No. 315 [Eyewitness Identification].
33. 33. See CALCRIM No. 224 [Circumstantial Evidence: Sufficiency of Evidence].↑ See CALCRIM No. 224 [Circumstantial Evidence: Sufficiency of Evidence].
34. 34. Penal Code, § 29.4.↑ Penal Code, § 29.4.
35. 35. Penal Code, § 25, subd. (b).↑ Penal Code, § 25, subd. (b).
36. 36. In re Humphrey (2021) 11 Cal.5th 135.↑ In re Humphrey (2021) 11 Cal.5th 135.