How Long Is a Life Sentence in Wyoming? (2026 Guide)

This article was last reviewed and updated on March 17, 2026. All statutes, case law, and sentencing data have been verified against current Wyoming government sources.

In Wyoming, a life sentence for first-degree murder means the defendant must serve a minimum of 25 years in prison before becoming eligible for parole. This is one of the longer mandatory minimums in the United States, reflecting Wyoming's serious approach to violent crime despite its low overall crime rate.

Wyoming is the least populous state in the nation, with fewer than 600,000 residents. Its murder rate is among the lowest in the country, and the state's prison population is correspondingly small. Yet Wyoming retains the death penalty on its statute books, even though it has not executed anyone since 1992.

Wyoming Life Sentence Statutes

Wyoming's criminal code defines homicide offenses with clear, direct language.

First-Degree Murder (Wyo. Stat. § 6-2-101): Murder committed with premeditation and deliberation, or murder committed during the commission of certain felonies (felony murder), including sexual assault, arson, robbery, burglary, escape, and kidnapping. First-degree murder is punishable by death or life imprisonment. When a life sentence is imposed, the defendant must serve a minimum of 25 years before parole eligibility.

Second-Degree Murder (Wyo. Stat. § 6-2-104): Purposely and maliciously killing another person without premeditation. Second-degree murder is punishable by 20 years to life in prison.

Manslaughter (Wyo. Stat. § 6-2-105): Unlawfully killing a human being without malice, either voluntarily in the heat of passion or involuntarily during the commission of an unlawful act. Punishable by a maximum of 20 years.

Aggravating factors (Wyo. Stat. § 6-2-102): Wyoming defines specific aggravating circumstances that can make a first-degree murder case eligible for the death penalty, including murder of a law enforcement officer, murder for hire, murder during the commission of specified felonies, and murder involving particularly heinous circumstances.

Parole Eligibility

Wyoming's parole system provides a structured path to release for life-sentenced inmates, though the wait is substantial.

25-year minimum: Inmates sentenced to life for first-degree murder must serve a minimum of 25 years before becoming eligible for parole consideration. This is calculated from the date of sentencing, not the date of the offense.

Second-degree murder: For life sentences imposed under second-degree murder, the minimum time before parole eligibility varies based on the specific sentence imposed by the judge.

Wyoming Board of Parole: The Wyoming Board of Parole is responsible for evaluating parole applications from eligible inmates. The board considers the nature of the offense, institutional conduct, participation in treatment and educational programs, risk assessment, victim impact, and the inmate's release plan.

Parole hearings: When a life-sentenced inmate reaches their eligibility date, the Board of Parole conducts a hearing. If denied, subsequent hearings are scheduled at intervals determined by the board. There is no guarantee of parole — some inmates serve well beyond their minimum eligibility date.

Conditions of parole: Parolees are subject to supervision conditions including regular reporting, restrictions on travel and association, drug testing, and compliance with all laws. Life parolees may be subject to extended or lifetime supervision.

Clemency

The Governor of Wyoming has the power to grant pardons, commutations, and reprieves. For inmates serving life sentences, executive clemency represents an alternative path to release beyond the parole system. However, clemency is rarely granted in murder cases.

Death Penalty — On the Books but Rarely Used

Wyoming retains the death penalty as a legal punishment, but it has been used extremely rarely in modern history.

Last execution: Wyoming's last execution was carried out on January 22, 1992, when Mark Hopkinson was put to death by lethal injection for ordering the murder of four people in the late 1970s. More than 30 years have passed since that execution.

Death row: As of 2026, only one person remains on Wyoming's death row — Dale Wayne Eaton, convicted of the 1988 kidnapping, sexual assault, and murder of 18-year-old Lisa Marie Kimmell. Eaton's death sentence has been subject to ongoing legal challenges.

Execution method: Wyoming uses lethal injection as its primary execution method.

Legislative efforts: There have been periodic efforts in the Wyoming legislature to abolish the death penalty, but none have succeeded. The state's conservative political culture and strong law-enforcement tradition have generally favored retention, even as the practical reality is that the death penalty is almost never sought or imposed.

Cost and practicality: Given Wyoming's very small number of capital cases, the cost of maintaining death penalty infrastructure relative to its use has been a point of discussion. The state's small population and low murder rate mean that capital cases are exceedingly rare.

Notable Life Sentence Cases in Wyoming

Dale Wayne Eaton — The Lisa Marie Kimmell Case

Dale Wayne Eaton was convicted of the 1988 kidnapping, sexual assault, and murder of Lisa Marie Kimmell, whose body was found in the North Platte River. The case went unsolved for over a decade until DNA evidence linked Eaton to the crime in 2002. He was sentenced to death, but his case has been the subject of extended legal proceedings regarding the adequacy of his defense counsel and the constitutionality of his sentence.

Matthew Shepard Murder (1998)

While the perpetrators of this crime were not sentenced to life in the traditional sense — Aaron McKinney received two consecutive life sentences without the possibility of parole as part of a plea deal that spared him from the death penalty, and Russell Henderson received two consecutive life sentences with no parole — the case had an enormous national and international impact.

Matthew Shepard's murder in Laramie, Wyoming, due to his sexual orientation, became a catalyst for hate crimes legislation across the country. The federal Matthew Shepard and James Byrd Jr. Hate Crimes Prevention Act was signed into law in 2009.

Mark Hopkinson — Last Execution

Mark Hopkinson was a prominent Evanston, Wyoming, businessman convicted of orchestrating the murders of Vincent Vehar, his wife Beverly, and their son John in 1979, as well as the murder of attorney Jeff Green. Hopkinson was sentenced to death and executed by lethal injection on January 22, 1992 — the last execution carried out in Wyoming.

Recent Legislative Changes

Year	Change
2023	No major sentencing changes enacted
2019	Death penalty repeal bill narrowly failed in the legislature
2014	Juvenile sentencing reforms implemented following Miller v. Alabama
1992	Last execution carried out (Mark Hopkinson)

Wyoming has seen relatively few changes to its life sentencing framework in recent years. The state's small population and low crime rate mean that legislative attention to criminal sentencing is less frequent than in larger states.

The most notable recent development has been the ongoing debate over death penalty abolition. In 2019, a bill to abolish the death penalty passed the Wyoming House of Representatives but was defeated in the Senate. The debate reflected a national trend of states reconsidering capital punishment.

Juvenile Life Sentences

Wyoming does not impose life without parole on juvenile offenders.

JLWOP banned: Consistent with the U.S. Supreme Court's rulings in Miller v. Alabama (2012) and Montgomery v. Louisiana (2016), Wyoming ensures that juvenile offenders are not sentenced to mandatory life without parole. Individualized sentencing hearings are required for any juvenile facing a life sentence.

Transfer to adult court: Wyoming allows juveniles to be transferred to adult court for serious offenses. However, even when tried as adults, juvenile offenders receive sentencing consideration that accounts for their age, maturity, and rehabilitative potential.

Small numbers: Given Wyoming's small population and low crime rate, the number of juveniles facing murder charges in any given year is extremely small. The state has very few juvenile lifers.

Parole eligibility: Juvenile offenders sentenced to life in Wyoming are eligible for parole consideration, consistent with constitutional requirements that juveniles be given a meaningful opportunity for release based on demonstrated maturity and rehabilitation.

Historical Context

Wyoming's criminal justice history reflects its frontier heritage and small-state character.

Frontier justice: Wyoming Territory, established in 1868, dealt with crime in the context of a sparsely populated frontier. Vigilante justice and extrajudicial executions were part of the territory's early history, before formal legal institutions were fully established.

Statehood and early law: Wyoming became a state in 1890. Its criminal code was influenced by the legal traditions of its territorial era, with a strong emphasis on individual rights and limited government. The state's constitution, ratified in 1889, was one of the first in the world to grant women the right to vote — reflecting Wyoming's progressive streak on civil rights even as it maintained tough criminal penalties.

Death penalty history: Wyoming has carried out relatively few executions throughout its history. The state used hanging as its execution method until adopting lethal injection. Only a handful of executions were carried out in the 20th century, and none since 1992.

Modern era: Wyoming's criminal justice system today reflects its small, rural character. The state operates a small prison system, with the Wyoming Department of Corrections overseeing approximately 2,000 inmates. Violent crime rates are generally below the national average, though property crime and drug offenses have increased in some areas.

Political context: Wyoming is one of the most politically conservative states in the nation. Despite this, there has been bipartisan interest in criminal justice reform, including sentencing reform for non-violent offenses and exploring alternatives to incarceration. The death penalty debate has divided the legislature along less predictable lines than might be expected.

Wyoming Life Sentence at a Glance

Category	Details
Life with parole minimum	25 years for first-degree murder
LWOP available	Through death penalty statute (rarely applied)
Death penalty	On the books; last used 1992
Last execution	January 22, 1992 (Mark Hopkinson)
Current death row population	1
Juvenile LWOP	Banned
Parole board	Wyoming Board of Parole
Murder rate	Among the lowest in the U.S.
Key statutes	Wyo. Stat. §§ 6-2-101, 6-2-102, 6-2-104

Related Pages

• How Long Is a Life Sentence? State-by-State Guide
• Murder Sentencing Guidelines for Every State