California's felony murder rule no longer works the way most people assume. After SB 1437 took effect, prosecutors cannot simply point to your presence during a robbery or burglary and call it murder. Today, the law requires proof that you were the actual killer, that you intended the killing as an aider or abettor, or that you were a major participant who acted with reckless indifference to human life. If you were convicted under the old, broader standard, you may be eligible to petition for resentencing under Penal Code § 1170.95 (now renumbered § 1172.6). That petition is not automatic, and the outcome depends entirely on the facts in your trial record. The single most important step right now is getting an experienced criminal defense attorney to review your case.
Here is what the current law requires:
- Actual killer: You personally caused the death.
- Aider/abettor with intent to kill: You helped someone else commit the killing and specifically intended that the victim die.
- Major participant with reckless indifference: You played a substantial role in the underlying felony and were consciously indifferent to whether someone would be killed.
- Resentencing eligibility: If your conviction rested on a theory the reformed statute no longer supports, you can petition the sentencing court to vacate the murder conviction and resentence you on remaining counts.
Key Takeaways
California's felony murder rule now limits murder liability to three specific routes, and people convicted under the old broader standard can petition for resentencing under Penal Code § 1172.6.
| Point | Details |
|---|---|
| Three routes to liability | Actual killer; aider/abettor with intent to kill; or major participant with reckless indifference under PC § 189(e). |
| SB 1437 eliminated imputed malice | Prosecutors must now prove each defendant's individual mental state — participation alone is not enough. |
| Resentencing is not automatic | You must file a petition; courts conduct an individualized review of your trial record and role. |
| Special circumstances survive separately | A successful petition may not eliminate an LWOP sentence if a special-circumstances finding remains in the record. |
| Rubin Law, P.C. handles these cases | The firm reviews trial records, screens eligibility, and litigates resentencing petitions across Los Angeles County. |
Table of Contents
- How the felony murder rule in California changed under SB 1437
- Who can be convicted now under California's felony murder statute
- How to petition for resentencing under SB 1437
- What courts look for: "major participant" and "reckless indifference"
- Common defense strategies and prosecution responses
- Sentencing exposure and what resentencing actually changes
- What an experienced defense attorney will do to evaluate your petition
- Why individualized culpability is the whole point
- Rubin Law, P.C. can review your felony murder case
- Primary sources and further reading
- Sources
How the felony murder rule in California changed under SB 1437
Before 2019, California's felony murder rule was broader than many states'. A getaway driver who never touched a weapon could be convicted of first-degree murder if a co-defendant killed someone during a robbery. The legal mechanism was imputed malice: the law treated participation in a dangerous felony as automatically supplying the mental state for murder.
SB 1437 dismantled that framework. It amended Penal Code § 188 to require that malice be proven individually for each defendant, and it rewrote Penal Code § 189 to list the only three circumstances under which a non-killer can be held liable for murder. It also added what was originally § 1170.95, a petition mechanism allowing people already serving sentences under the old rule to seek relief.
Before SB 1437 vs. after SB 1437:
| Legal question | Before SB 1437 | After SB 1437 |
|---|---|---|
| Malice requirement for accomplices | Imputed from felony participation | Must be proven individually |
| Accomplice liability for murder | Broad — any participant could be charged | Limited to three specific routes under PC § 189(e) |
| Natural-and-probable-consequences doctrine | Applied to murder charges | Eliminated as a basis for murder liability |
| Relief for prior convictions | None | Petition under § 1170.95 / § 1172.6 |
The legislature's stated purpose was to ensure that murder liability reflects individual culpability, not just proximity to a crime. Courts interpreting the statute have reinforced that point consistently.
The Attorney General's guidance on Penal Code § 187 also clarifies the outer boundaries of California's homicide statutes, including statutory exceptions that bear on which killings fall within the murder framework at all.
Who can be convicted now under California's felony murder statute
Penal Code § 189(e) sets out the three routes with precision. Understanding which one the prosecution relied on at trial is the foundation of any defense or petition strategy.
The three routes:
- Route 1 — Actual killer (§ 189(e)(1)): The defendant personally committed the act that caused death. No additional mental-state analysis is required beyond what murder already demands.
- Route 2 — Aider/abettor with intent to kill (§ 189(e)(2)): The defendant assisted the actual killer and did so with the specific intent that the victim be killed. General participation is not enough; the prosecution must show the defendant's own intent was lethal.
- Route 3 — Major participant with reckless indifference (§ 189(e)(3)): The defendant played a major role in one of the enumerated predicate felonies and acted with conscious disregard for the likelihood that someone would die.
Enumerated predicate felonies under PC § 189 include robbery, burglary, arson, rape, carjacking, kidnapping, train wrecking, and several others. The list matters because felony murder liability attaches only when the underlying crime is on it. For felonies not on the list, the prosecution must rely on a different theory entirely.
A brief note on the peace-officer exception: PC § 189(f) provides that a peace officer who kills someone in the line of duty is not subject to felony murder liability when the killing occurs during a lawful arrest or in response to a threat. This is a narrow carve-out and does not affect civilian defendants.
A concrete example: Imagine two people plan a burglary. One stays outside as a lookout while the other enters and, unexpectedly, kills the homeowner. Under the old rule, the lookout could be convicted of first-degree murder. Under the current statute, the prosecution must prove the lookout was a major participant who acted with reckless indifference — not just that they were present and aware a burglary was happening. That is a materially harder case to make. FindLaw's annotated summary of PC § 189 confirms this narrowed scope.
CALCRIM model instructions 540A, 540B, and 540C are the jury instructions courts use to explain these routes to jurors. Reviewing which instruction was given at your trial tells counsel exactly which theory the jury was asked to apply.
Comparison: felony murder vs. second-degree murder
| Feature | Felony murder (PC § 189) | Second-degree murder (PC § 187) |
|---|---|---|
| Mental state required | Varies by route (intent to kill or reckless indifference for accomplices) | Malice aforethought (express or implied) |
| Predicate act required | Yes — enumerated felony | No |
| Accomplice liability | Limited to three routes post-SB 1437 | Broader aiding/abetting theories apply |
| Resentencing petition available | Yes, under § 1172.6 | In some cases, if natural-and-probable-consequences theory was used |
How to petition for resentencing under SB 1437
The resentencing mechanism is real, but it requires work. Courts do not review old convictions on their own. The defendant must file a petition, and the court then conducts an individualized review. CalMatters reporting on a 2025 California Supreme Court resentencing order makes this point clearly: relief is not automatic, and courts examine each defendant's specific role and mental state under the amended statute.
Step-by-step process:
- Determine eligibility. The petition statute covers people convicted of murder under a felony-murder theory or the natural-and-probable-consequences doctrine. If you were convicted as the actual killer and no other theory was presented, you are generally not eligible.
- File the petition. The petition goes to the sentencing court. It must state that you meet the eligibility criteria and that you could not currently be convicted of murder under the reformed statute.
- Prima facie review. The court reviews the petition on its face. If the record of conviction conclusively establishes that you are ineligible (for example, the jury found you were the actual killer), the court can deny the petition without a hearing.
- Appointment of counsel. If the petition survives prima facie review, the court must appoint counsel for you if you cannot afford one.
- Briefing and hearing. Both sides submit briefing. The prosecution may argue that the record proves you remain liable under the reformed statute. If the court finds a genuine dispute, it holds an evidentiary hearing.
- Outcome. Possible results include: vacatur of the murder conviction and resentencing on remaining counts; redesignation of the offense to the underlying felony for resentencing purposes; or denial.
Timeline: Petition timelines vary by county and court backlog. Some petitions resolve within months through stipulation; contested hearings can take a year or more. There is no hard statutory deadline for filing, but waiting creates practical risks — witnesses become unavailable, records get harder to locate, and memories fade.
Pro Tip: Request certified copies of the trial transcripts, minute orders, charging documents, and any appellate opinions as early as possible. Courts and court reporters can take months to produce these records, and the petition cannot be fully briefed without them.
What courts look for: "major participant" and "reckless indifference"
These two phrases do the heaviest lifting in post-SB 1437 litigation. Courts do not define them abstractly — they apply a multi-factor analysis drawn from the trial record.
Factors courts consider for "major participant":
- Did the defendant plan or organize the underlying felony?
- Did the defendant supply or use a weapon?
- What was the defendant's physical role at the scene — active participant or peripheral?
- Did the defendant control the operation or direct others?
- How central was the defendant's contribution to the crime's execution?
Factors courts consider for "reckless indifference to human life":
- Was the defendant aware that lethal force was likely or being used?
- Did the defendant use a weapon or encourage others to use one?
- Did the defendant have an opportunity to prevent the killing and fail to act?
- Did the defendant remain at the scene after violence began rather than withdrawing?
- How much time did the defendant have to observe the escalating danger?
Two quick hypotheticals show how these factors play out. In the first, a defendant recruits co-defendants, drives them to the scene, waits outside, and knows they are armed. Courts have consistently found major participant status and reckless indifference on facts like these. In the second, a defendant is told the plan is a simple theft, has no knowledge of weapons, and leaves before any violence occurs. That fact pattern undercuts both prongs significantly. The difference between these two scenarios is not the label attached to the defendant's role — it is the specific facts in the record.
Academic commentary analyzing how appellate decisions have shaped these standards post-SB 1437 is available through LMU's digital commons, and it is worth reading for anyone litigating a contested petition.
Common defense strategies and prosecution responses
Defense and prosecution tactics in post-SB 1437 cases are shaped almost entirely by what the trial record contains.
Defense approaches:
- Attack the theory of murder. Prosecutors do not always specify the predicate felony or theory clearly in charging documents. Practitioner scholarship published by the California Lawyers Association documents how vague charging raises Sixth Amendment notice concerns — if the prosecution cannot identify the precise theory it relied on, that ambiguity benefits the defense.
- Emphasize limited participation. Testimony, admissions, and sentencing transcripts that show a peripheral role directly undercut major participant status.
- Show absence of reckless indifference. Evidence that the defendant did not know violence was likely, did not have weapons, or attempted to withdraw is powerful at the hearing stage.
- Use the appellate record. Prior appellate opinions sometimes contain factual summaries that lock in favorable characterizations of the defendant's role.
Prosecution responses:
- Prosecutors point to planning evidence, communications, and physical proximity to the lethal act.
- They argue foreseeability of violence based on the nature of the predicate felony (armed robbery, for example, carries an obvious risk of lethal force).
- Witness testimony placing the defendant near the killing or showing awareness of weapons is a common prosecution tool.
- When the record supports it, prosecutors seek special-circumstances enhancements, which carry separate consequences discussed below.
Pro Tip: Secure all trial exhibits, not just transcripts. Physical evidence logs, photographs, and forensic reports sometimes contain details about the defendant's location and conduct that are more reliable than witness memory and can cut either way at a hearing.
Sentencing exposure and what resentencing actually changes
For first-degree murder under California law, the base sentence is 25 years to life. Special circumstances — such as murder committed during a robbery or burglary — can elevate the sentence to life without the possibility of parole (LWOP) or, in capital cases, death. Second-degree murder carries a sentence of 15 years to life, with variations depending on the defendant's record and the specific facts.
A successful petition changes this exposure in concrete ways:
- Vacatur of the murder conviction. The murder conviction is set aside entirely.
- Resentencing on remaining counts. The court resentences the defendant based on the underlying felony (robbery, burglary, etc.) and any other counts of conviction. The resulting sentence is often substantially shorter.
- Redesignation. In some cases, the court redesignates the offense to the underlying felony for resentencing purposes without a full new trial.
The critical caveat: a successful petition does not automatically eliminate special-circumstances findings. If the jury made a separate finding that the defendant was a major participant who acted with reckless indifference — which is the standard for the felony-murder special circumstance under PC § 190.2 — that finding may survive the petition and still support an LWOP sentence. FindLaw's annotated PC § 189 notes this distinction, and it is one of the most commonly misunderstood aspects of post-SB 1437 litigation. Every petition requires a separate analysis of whether special circumstances remain viable on the existing record.
Courts rely on CALCRIM instructions for special circumstances to determine what the jury was actually asked to find, which is why the jury instructions from the original trial are among the most important documents in any resentencing proceeding.
What an experienced defense attorney will do to evaluate your petition
Engaging counsel early is not just good advice — it is the practical difference between a petition that survives prima facie review and one that gets denied on the face of the record.
Counsel's intake checklist:
- Obtain the case number and court of conviction.
- Request the charging instruments (complaint, information, or indictment).
- Secure the sentencing minute order and abstract of judgment.
- Order certified trial transcripts, including jury instruction conferences.
- Gather appellate filings and any prior habeas petitions.
- Collect witness lists, physical evidence logs, and any available electronic evidence.
Counsel's review and litigation sequence:
- Records collection. This step alone can take weeks to months. Court reporters and archives have backlogs, and older transcripts may require special requests.
- Legal eligibility screen. Counsel reviews the record to determine whether the conviction rested on a theory that SB 1437 eliminated and whether any disqualifying findings (actual killer, express malice) appear in the record.
- Draft petition. Counsel prepares the petition with a factual and legal showing that the defendant meets the statutory criteria.
- Prima facie briefing. If the prosecution opposes, counsel responds with record citations showing the petition should proceed to a hearing.
- Evidentiary presentation or stipulation. At the hearing stage, counsel presents the favorable record evidence and challenges the prosecution's characterization of the defendant's role.
- Resentencing negotiation or hearing. If the petition succeeds, counsel negotiates the resentencing outcome or presents argument at the resentencing hearing.
Pro Tip: At your first consultation, ask counsel these specific questions: Am I eligible based on the theory of murder used at trial? What does the trial record show about my role? What is the realistic range of outcomes? How long will this take, and what will it cost? Clear answers to these four questions tell you whether counsel has actually reviewed your facts or is giving you a generic pitch.
If you are currently in custody and need to address immediate release options while pursuing post-conviction relief, understanding bail for felony charges is a practical parallel step worth exploring.
Why individualized culpability is the whole point
SB 1437 is not a technicality. It is a correction to a doctrine that produced sentences measured in decades for people whose actual conduct, judged honestly, did not warrant them. The natural-and-probable-consequences theory and broad imputed malice were legal shortcuts that courts used to avoid the harder work of figuring out what each defendant actually did and actually intended.
What I find striking, having watched these cases closely, is how often the trial record contains the answer — buried in a sentencing transcript, a co-defendant's testimony, or a jury instruction conference that nobody revisited for years. The facts were always there. The legal framework just did not require anyone to look at them carefully.
That is what SB 1437 changed. It forced the question back to where it belongs: what did this person do, and what did this person know? For defendants serving life sentences based on peripheral roles in crimes they did not plan and killings they did not commit, that question is long overdue.
The petition process is not easy, and it is not fast. But it is real, and for the right case, it works. The California Supreme Court's 2025 resentencing order is proof that the highest court in the state takes this seriously. The question is whether the facts in your record support the argument.
Rubin Law, P.C. can review your felony murder case
Facing a felony murder conviction or supporting a family member through the petition process is one of the most high-stakes legal situations anyone can navigate. Rubin Law, P.C. is a Los Angeles criminal defense firm with deep courtroom experience in murder and homicide defense, including post-SB 1437 resentencing petitions. The firm's approach starts with the trial record: pulling transcripts, reviewing jury instructions, and identifying whether the conviction rested on a theory the reformed statute no longer supports.
What the firm does first: gather records, run the legal eligibility screen, and give you a straight answer about whether a petition is worth pursuing and what the realistic outcomes look like. If you are ready to move forward, bring your case number, any court documents you have, and the name of the court where you were sentenced. Serving clients across Los Angeles County, Rubin Law, P.C. offers consultations for defendants and family members who need experienced counsel on felony murder charges and resentencing petitions. Contact the firm to schedule your consultation.
Primary sources and further reading
The sources below are the authoritative references for the legal framework covered in this article. Use the statutes for the actual legal text, the court and legislative resources for procedural context, and the firm pages to take the next step toward representation.
- SB 1437 legislative text — the bill that amended PC §§ 188 and 189 and created the resentencing petition mechanism. Read this to see exactly what the legislature changed and why.
- Penal Code § 189 (official text) — the current statutory language setting out the three routes to felony-murder liability.
- CALCRIM jury instructions (2025) — model instructions 540A, 540B, and 540C explain how courts instruct juries on felony murder theories and special circumstances.
- CalMatters: California Supreme Court resentencing order (2025) — reporting on a recent Supreme Court decision applying SB 1437 and explaining why resentencing requires fact-specific review.
- Rubin Law, P.C. — murder defense practice — the firm's Los Angeles murder defense page, including PC § 187 and § 189 matters and resentencing petition work.
- Rubin Law, P.C. — California homicide laws overview — broader context on murder, manslaughter, and the differences between homicide charges in California.
This article provides general legal information about California's felony murder rule and SB 1437. It is not legal advice and does not create an attorney-client relationship. Laws and case interpretations change; confirm current rules with a qualified California criminal defense attorney before taking any legal action.
This article is general information, not a substitute for advice from a qualified lawyer. Consult a qualified legal professional about your own circumstances before acting on anything here.
Sources
- Today's Law As Amended - SB-1437 Accomplice liability for felony murder.
- Leginfo
- CA Supreme Court orders resentencing in felony murder case - CalMatters
Felony Murder: First Degree—Defendant Allegedly Committed Fatal Act](https://courts.ca.gov/system/files/itc/calcrim-2025-02.pdf)