Murder charges in Minnesota are divided into three degrees, backed by two degrees of manslaughter for less culpable killings. First-degree murder carries a mandatory life sentence. Second-degree murder tops out at 40 years, third-degree at 25 years, first-degree manslaughter at 15 years, and second-degree manslaughter at 10 years. What a defendant actually serves depends on the sentencing guidelines grid, criminal history, and whether a firearm was involved.
First-Degree Murder
First-degree murder is the most serious criminal charge in the state, and a conviction carries a mandatory life sentence.1Minnesota Office of the Revisor of Statutes. Minnesota Code 609.185 – Murder in the First Degree The charge applies in several situations:
- A premeditated killing, where the defendant planned and intended to kill before acting.
- A killing during a violent felony such as burglary, aggravated robbery, carjacking, kidnapping, arson, a drive-by shooting, witness tampering, escape from custody, or an unlawful controlled substance sale.
- A killing during a forcible criminal sexual assault.
- The intentional killing of a peace officer, prosecutor, judge, or correctional facility guard acting in an official capacity.
- A death caused during ongoing child abuse or domestic abuse showing extreme indifference to human life, where the defendant has a documented pattern of that abuse.
- A death caused during a felony committed to further terrorism under circumstances showing extreme indifference to human life.
Premeditation is the element that trips up most people unfamiliar with criminal law. It does not require weeks of planning. Minnesota courts have found premeditation in spans as short as moments, so long as the evidence shows the defendant formed the intent to kill before acting. The line between “I decided to kill this person and then did it” and “I killed this person in the moment” is the line between first- and second-degree murder.
Because a life sentence is on the table, a first-degree murder case must begin with a grand jury indictment rather than a prosecutor’s complaint.2Minnesota Office of the Revisor of Statutes. Rule 17 – Indictment, Complaint and Tab Charge A prosecutor can file a complaint to support an arrest warrant or an initial appearance, but the formal charge must come through an indictment.
Second-Degree Murder
Second-degree murder covers two distinct situations, and both carry a maximum of 40 years in prison.3Minnesota Office of the Revisor of Statutes. Minnesota Code 609.19 – Murder in the Second Degree
Intentional Second-Degree Murder
This applies when someone intentionally kills another person without premeditation. The classic scenario is a sudden decision to kill during a confrontation or argument. The defendant meant to cause death, but there was no advance planning. Because a deliberate choice to kill is still involved, the offense sits at Severity Level 11 on the sentencing guidelines grid, with presumptive sentences ranging from 306 months (about 25.5 years) for defendants with no criminal history up to 426 months (about 35.5 years) for those with extensive records.4Minnesota Sentencing Guidelines Commission. 2026 Report to the Legislature
Unintentional Felony Murder
The second type applies when someone causes a death during another felony, even without any intent to kill. If a robbery goes wrong and the victim dies from injuries, the person committing the robbery can face second-degree murder charges despite never intending lethal harm.3Minnesota Office of the Revisor of Statutes. Minnesota Code 609.19 – Murder in the Second Degree The statute carves out two exceptions: deaths during forcible criminal sexual conduct and drive-by shootings are charged as first-degree murder instead. Unintentional second-degree murder sits at Severity Level 10, with presumptive sentences of 150 to 240 months depending on criminal history.4Minnesota Sentencing Guidelines Commission. 2026 Report to the Legislature
Third-Degree Murder
Third-degree murder covers two scenarios, both punishable by up to 25 years in prison.5Minnesota Office of the Revisor of Statutes. Minnesota Code 609.195 – Murder in the Third Degree
Depraved-Mind Murder
The first type involves causing a death through extremely reckless behavior showing a complete disregard for human life, but without intent to kill any specific person. Firing a gun into a crowd or driving at extreme speeds through a crowded area could qualify. The focus is on the dangerousness of the act itself and the indifference behind it, not on whether the defendant targeted a particular victim. This version sits at Severity Level 10, carrying the same presumptive range as unintentional second-degree murder: 150 to 240 months.4Minnesota Sentencing Guidelines Commission. 2026 Report to the Legislature
Drug Distribution Causing Death
The second type applies when someone illegally sells or distributes a Schedule I or II controlled substance and that drug causes another person’s death. The defendant does not need to intend any harm. If a dealer sells fentanyl or heroin and the buyer dies from an overdose, the dealer can face third-degree murder charges. The maximum penalty is 25 years in prison and a fine of up to $40,000.5Minnesota Office of the Revisor of Statutes. Minnesota Code 609.195 – Murder in the Third Degree
First-Degree Manslaughter
First-degree manslaughter carries up to 15 years in prison and a fine of up to $30,000.6Minnesota Office of the Revisor of Statutes. Minnesota Code 609.20 – Manslaughter in the First Degree It covers several situations:
- A heat-of-passion killing, where the defendant intentionally killed after provocation that would push a reasonable person past the breaking point. The statute specifically says the crying of a child does not count as provocation.
- A death during a misdemeanor or gross misdemeanor, such as an assault, where the force used made death a foreseeable result.
- A killing under coercion, where a third party threatened the defendant with imminent death and the defendant reasonably believed killing was the only way to survive.
- A death caused by the sale or distribution of a Schedule III, IV, or V controlled substance. Deaths caused by Schedule I or II drugs are charged as third-degree murder instead.
- A death during malicious punishment of a child where the conduct does not rise to the level of murder.
Second-Degree Manslaughter
Second-degree manslaughter applies when someone’s negligent behavior causes another person’s death, even without any intent to kill or harm. The maximum penalty is 10 years in prison and a $20,000 fine.7Minnesota Office of the Revisor of Statutes. Minnesota Code 609.205 – Manslaughter in the Second Degree The statute identifies specific forms of deadly negligence: creating an unreasonable risk by consciously taking chances with others’ safety, accidentally shooting someone while negligently mistaking them for a deer, setting dangerous traps or devices, and allowing a known-vicious animal to roam off the owner’s property. A death caused by child neglect or endangerment falls here when it does not rise to murder.
How Actual Time Served Is Determined
The statutory maximums are just the ceiling. What a defendant actually receives depends on the Minnesota Sentencing Guidelines, which assign a presumptive sentence based on two factors: the severity level of the offense and the defendant’s criminal history score.
First-degree murder bypasses the guidelines entirely because the life sentence is mandatory. For every other homicide charge, the sentencing grid produces a specific number of months. A person convicted of intentional second-degree murder with no prior record faces a presumptive sentence of 306 months. That same charge with a criminal history score of 6 or higher jumps to 426 months.4Minnesota Sentencing Guidelines Commission. 2026 Report to the Legislature Judges can depart from the presumptive sentence upward or downward, but they must state their reasons on the record.
The Two-Thirds Rule
For any fixed prison term (everything except a life sentence), Minnesota law requires the defendant to serve two-thirds of the sentence behind bars before transitioning to supervised release for the remaining third.8Minnesota Office of the Revisor of Statutes. Minnesota Code 244.05 – Supervised Release Term A 306-month sentence for intentional second-degree murder translates to roughly 204 months (17 years) in prison followed by about 102 months (8.5 years) of supervised release. This is where actual time served diverges sharply from the statutory maximum or the presumptive sentence that makes headlines.
Firearm and Weapon Minimums
If a firearm was used during the offense, the court must impose a minimum sentence of three years, and that minimum cannot be reduced through probation or early release.9Minnesota Office of the Revisor of Statutes. Minnesota Code 609.11 – Minimum Sentences of Imprisonment A second firearm offense carries a five-year minimum. For other dangerous weapons, the minimum is one year and one day for a first offense and three years for a second. These floors matter most in lower-degree murder and manslaughter cases where the presumptive sentence might otherwise be shorter.
Defenses to a Murder Charge
A charge is not a conviction. The defenses available in Minnesota can eliminate criminal liability entirely or reduce a murder charge to a lesser offense.
Self-Defense and the Duty to Retreat
Minnesota law authorizes reasonable force to resist an offense against yourself or another person.10Minnesota Office of the Revisor of Statutes. Minnesota Code 609.06 – Authorized Use of Force Deadly force is justified only when the defendant reasonably believed it was necessary to prevent great bodily harm, death, or the commission of a felony inside their home.11Minnesota Office of the Revisor of Statutes. Minnesota Code 609.065 – Justifiable Taking of Life
Outside the home, Minnesota imposes a duty to retreat. You must try to escape the danger when reasonably possible before resorting to deadly force. Inside your own home, that retreat requirement disappears, and you can use deadly force to prevent a felony being committed in your dwelling, though the force must still be proportional to the threat. Once a threat ends, the right to use force ends with it.
Mental State
Because murder charges hinge on the defendant’s mental state, defenses often target that element directly. A defendant may argue they lacked the mental capacity to form the intent the charge requires. On an intentional second-degree murder charge, for example, successfully showing the defendant could not form the intent to kill could reduce the offense to third-degree murder or manslaughter. In rare cases, a defendant may assert a full insanity defense, arguing they were so mentally ill at the time of the offense that they could not understand what they were doing or that it was wrong.
Evidentiary and Procedural Challenges
Defense attorneys frequently challenge how evidence was obtained. If police conducted an illegal search, evidence found may be excluded, and losing a key piece of evidence can gut a prosecution. Confession reliability is another battleground. Minnesota courts have held that custodial interrogations should be recorded so that confessions can be shown to be voluntary and not coerced.12Justia. State v. Scales An unrecorded or improperly obtained confession gives the defense a strong argument for suppression. Violations of the right to an attorney or failures to provide proper Miranda warnings can accomplish the same thing. These challenges rarely result in acquittal on their own, but they remove building blocks the prosecution needs, and that often changes the outcome.