First, Second, and Third Degree Murder: Key Differences

The difference between first-degree, second-degree, and third-degree murder comes down to three factors: intent, premeditation, and the circumstances of the killing. Each degree carries different penalties, and the distinctions can mean the difference between a limited prison sentence and life without parole.

This guide explains how each degree is defined, which states recognize third-degree murder, how the felony murder rule works, and the penalty ranges across jurisdictions.

First-Degree Murder

First-degree murder is the most serious homicide charge. Under federal law (18 U.S.C. 1111), first-degree murder requires that the killing be "willful, deliberate, malicious, and premeditated."

What Premeditation Means

Premeditation does not require weeks or months of planning. Courts have held that premeditation can form in seconds, as long as the defendant had time to reflect on the decision to kill before acting. The key question is whether the defendant made a conscious decision to take a life, rather than acting on pure impulse.

What Qualifies as First-Degree Murder

Most jurisdictions classify the following as first-degree murder:

• Premeditated killings: Any deliberate, planned killing with malice aforethought
• Felony murder: Deaths that occur during the commission of certain felonies (arson, burglary, rape, robbery, kidnapping), even if the killing was unintentional
• Killing by poison or lying in wait: These methods imply premeditation by their nature
• Killing a law enforcement officer: Many states elevate this to first-degree regardless of circumstances

Penalties for First-Degree Murder

First-degree murder carries the most severe penalties in the criminal justice system.

Jurisdiction Type	Typical Penalty
Death penalty states (27 states)	Death or life without parole
Non-death-penalty states	Life imprisonment, often without parole
Federal	Death or life without parole

Second-Degree Murder

Second-degree murder is an intentional killing that happens without premeditation. The defendant intended to cause serious harm or death but did not plan the killing in advance.

How Second-Degree Differs from First-Degree

The defining distinction is premeditation. First-degree murder involves a deliberate plan to kill. Second-degree murder involves an intentional act that causes death but was not planned beforehand.

Common Scenarios

Second-degree murder charges typically arise in situations like:

• Heat of passion: A person kills during a sudden emotional response, such as discovering a spouse in an act of infidelity
• Depraved heart murder: Acting with extreme recklessness that shows a disregard for human life, such as firing a gun into a crowd without aiming at anyone specific
• Intent to cause serious harm: Intending to injure someone severely, where the injuries prove fatal

Penalties for Second-Degree Murder

Capital punishment is never available for second-degree murder. Sentences vary significantly by state.

State	Penalty Range
Federal	Presumptive ~20 years
California	15 years to life
New York	15-25 years to life
Virginia	5-40 years
Michigan	Life with possibility of parole
Massachusetts	Life with possibility of parole (eligible after 15 years)
Florida	Up to life in prison

Third-Degree Murder

Third-degree murder exists in only three states: Florida, Minnesota, and Pennsylvania. Each state defines it differently.

Florida

Under Fla. Stat. 782.04, third-degree murder applies when a person kills someone during the commission of a felony that is not one of the enumerated felonies triggering first-degree felony murder. For example, a death that occurs during a drug deal gone wrong could be charged as third-degree murder in Florida.

Penalty: Up to 15 years in prison. Classified as a second-degree felony.

Minnesota

Under Minn. Stat. 609.195, third-degree murder covers two situations:

1. Depraved mind murder: Causing death through an act "eminently dangerous to others" with a "depraved mind" but without intent to kill. The Minnesota Supreme Court has clarified that this requires conduct dangerous to people generally, not targeted at a specific individual.
2. Drug distribution deaths: Causing death by selling, giving away, or otherwise distributing a controlled substance (particularly Schedule I and II drugs like fentanyl).

Penalty: Up to 25 years in prison.

The Derek Chauvin case (2021) brought national attention to Minnesota's third-degree murder statute. Chauvin was convicted of both second-degree unintentional murder and third-degree murder for the death of George Floyd, receiving a sentence of 22.5 years.

Pennsylvania

Under 18 Pa.C.S. 2502(c), third-degree murder is a catch-all category covering "all other kinds of murder" that do not qualify as first-degree or second-degree. This includes killings committed with legal malice but without the specific intent to kill or the premeditation required for higher degrees.

Penalty: Up to 40 years in prison.

Pennsylvania is also unique in that felony murder during enumerated felonies is classified as second-degree murder (not first-degree as in most states).

Wisconsin Does Not Have Third-Degree Murder

A common misconception: Wisconsin does not recognize third-degree murder. Wisconsin restructured its homicide code into categories of first-degree intentional homicide, first-degree reckless homicide, second-degree intentional homicide, and second-degree reckless homicide.

The Felony Murder Rule

The felony murder rule holds a person responsible for any death that occurs during the commission of certain dangerous felonies, even if the death was accidental or unintentional.

How It Works

If a person commits (or attempts) an enumerated felony and someone dies as a result, the person can be charged with murder. The prosecution does not need to prove intent to kill. The most commonly enumerated felonies are arson, burglary, kidnapping, rape, and robbery.

Example: If two people rob a convenience store and a bystander has a fatal heart attack during the robbery, both robbers can be charged with felony murder, even though neither intended to cause anyone's death.

Classification by State

Most states classify felony murder as first-degree murder. Notable exceptions:

• Pennsylvania classifies felony murder as second-degree murder
• Florida classifies some felony murders as third-degree (non-enumerated felonies)

States That Have Abolished Felony Murder

Several states have abolished or significantly limited the felony murder rule:

• Hawaii, Kentucky, Michigan, Ohio, and Massachusetts have eliminated traditional felony murder
• Arkansas, California, Connecticut, Delaware, Maine, New Jersey, New York, North Dakota, Oregon, and Washington limit felony murder liability to the actual killer (not accomplices)

California's 2018 felony murder reform (SB 1437) has resulted in 1,172 people being resentenced as of December 2024. Of those released, 78% have remained free, with only a 2% recidivism rate.

Murder vs. Manslaughter

The key difference between murder and manslaughter is malice aforethought. Murder requires malice. Manslaughter does not.

Element	Murder (Any Degree)	Voluntary Manslaughter	Involuntary Manslaughter
Intent to kill	Yes (1st/2nd degree) or extreme recklessness (3rd)	No, but intentional act	No
Malice	Yes	No (adequate provocation)	No
Premeditation	Required for 1st degree only	No	No
Typical cause	Deliberate act or extreme recklessness	Heat of passion, sudden provocation	Criminal negligence, reckless conduct
Typical penalty	15 years to life/death	3-15 years	1-10 years

Voluntary manslaughter involves an intentional killing committed in the "heat of passion" after legally adequate provocation. The provocation must be severe enough that a reasonable person might lose self-control.

Involuntary manslaughter involves an unintentional killing caused by criminal negligence or reckless conduct. Examples include a fatal DUI crash or death caused by reckless handling of a firearm.

States Without the Degree System

Not all states use the first/second/third-degree framework.

Texas uses "capital murder" (for specific aggravating circumstances like killing a police officer or multiple victims) and "murder" (all other intentional killings). Texas does not use numbered degrees.

Wisconsin uses categories: first-degree intentional homicide, first-degree reckless homicide, second-degree intentional homicide, and second-degree reckless homicide.

South Carolina has a unitary murder statute without degree classifications.

How Prosecutors Decide Which Degree to Charge

Prosecutors evaluate several factors when deciding which degree of murder to charge:

• Evidence of planning: Did the defendant acquire a weapon beforehand? Did they make statements about wanting to kill the victim? Did they take steps to avoid detection?
• Relationship and motive: Was there a documented history of conflict? Did the defendant have a financial or personal motive?
• Circumstances of the killing: Was the act impulsive or calculated? Was the defendant provoked?
• Witness and forensic evidence: What does the physical evidence show about the sequence of events?

Prosecutors sometimes charge the highest degree they believe the evidence supports and allow the jury to consider lesser included offenses. A jury considering first-degree murder may convict on second-degree or manslaughter if they find insufficient evidence of premeditation.