State highest court

Wyoming Supreme Court

The 40 most recent opinions analysed by LawDiver, newest first. The case name opens the published case page. Read full opinion opens the opinion text.

Recent opinions

The Court affirmed Munoz’s second-degree murder conviction and the denial of his Rule 21 motions. It held the evidence sufficient, found no material prejudice from the transferred-intent instruction, concluded the Wyoming Constitution does not require a more protective ineffective-assistance prejudice standard, and…

The Wyoming Supreme Court sustained the State’s Bill of Exceptions and held that the district court erred by dismissing the charges for a speedy-trial violation under Rule 48. The court concluded that resetting trial after the competency suspension was a continuance in the due administration of justice, that the…

WyomingJoseph Carl Underwood v. the State of Wyoming

October 5, 20262026 WY 110

The Wyoming Supreme Court affirmed the acceptance of Underwood’s Alford pleas and his sentence, concluding that he did not establish plain error in the district court’s handling of accommodations for his intellectual disability.

The Wyoming Supreme Court affirmed the denial of Garcia’s motion to reduce his sentences under Rule 35(b). It held that the record did not support his claim that the district court failed to consider his motion, that his commendable conduct in prison did not establish an abuse of discretion, and that Rule 35(b) was…

WyomingRobert Wayne Downum v. the State of Wyoming

September 23, 20262026 WY 101

The Wyoming Supreme Court affirmed the district court’s judgment and six‑to‑eight‑year sentence, denied the appellant’s petition to file a pro se brief after the deadline, and allowed the court‑appointed counsel to withdraw.

WyomingMatthew T. Dausman v. the State of Wyoming

September 23, 20262026 WY 102

The Wyoming Supreme Court granted the motion to withdraw appellate counsel and affirmed the district court’s order denying the defendant’s motion to correct an illegal sentence, after the appellant failed to file a required pro se brief.

WyomingJanis D. Gummel v. Laramie County Assessor

September 23, 20262026 WY 103

The Wyoming Supreme Court reversed the Laramie County Board of Equalization’s order remanding the assessor’s valuation to downgrade the home’s condition from average to fair, holding the Board’s decision was not supported by substantial evidence.

WyomingBrian Joseph Melber v. the State of Wyoming

September 14, 20262026 WY 98

The Wyoming Supreme Court affirmed the district court’s denial of Melber’s motion to correct an illegal sentence, holding that he was not entitled to present‑sentence credit for his 259‑day Iowa confinement because it was not solely attributable to his Wyoming charge, and the Court lacked jurisdiction to review his…

WyomingYzail Ashton Gauna v. the State of Wyoming

September 3, 20262026 WY 97

The Wyoming Supreme Court affirmed the district court's sentence, holding that presentence confinement credit is only owed for days the defendant was detained solely because of a financial inability to post bond, not for time served due to probation revocation, resulting in a credit of 64 days.

WyomingChet Elliot Walker v. the State of Wyoming

August 21, 20262026 WY 94

The court affirmed Walker’s convictions, holding that the district court properly excluded most evidence concerning his wife’s conduct because it lacked a sufficient connection to Walker’s intent and risked confusing the jury, while allowing adequate impeachment and defense evidence.

WyomingJames Neil Todd v. the State of Wyoming

August 18, 20262026 WY 92

The Wyoming Supreme Court affirmed Todd’s conviction for attempted sexual exploitation of a child, holding that the evidence supported a finding that he took a substantial step toward enticing the child to engage in masturbation, which is explicit sexual conduct under the statute.

WyomingBrian Swindler v. Leah Bright

August 11, 20262026 WY 90

The Wyoming Supreme Court affirmed the district court's award of primary physical custody to Mother after her relocation from Cody, Wyoming to Colorado. Although both parents were found fit and competent caregivers, the court held the district court acted within its discretion because Mother's unilateral move rendered…

WyomingWilliam L. Lopez v. Samantha Ritter

August 10, 20262026 WY 89

The Wyoming Supreme Court affirmed the district court's entry of default judgment against William Lopez in favor of Samantha Ritter following a 2015 car accident. The court held that Lopez waived his due process challenge to service at a known vacant address by failing to raise it below, but addressed the…

WyomingRene Irisrose Daniels v. the State of Wyoming

August 7, 20262026 WY 88

The Wyoming Supreme Court affirmed the denial of Rene Irisrose Daniels's W.R.A.P. 21 motion for a new trial, which alleged trial counsel was ineffective for failing to seek suppression of her statements to law enforcement, failing to object to a detective's interview questions about non-existent eyewitnesses, failing…

WyomingWilliam John Duncan v. the State of Wyoming

July 30, 20262026 WY 86

The Wyoming Supreme Court affirmed the district court’s judgment, holding that the evidence was sufficient to support Duncan’s sexual exploitation convictions, that the jury instructions were not plain error, and that the aggregate sentence was not cruel punishment under the state constitution.

WyomingGoldie D. Beedy v. the State of Wyoming

July 24, 20262026 WY 84

The court affirmed the conviction and restitution order. It held that sufficient evidence supported finding the exploitation occurred in Converse County because Beedy took control of the vulnerable adult’s property there, and it held that the clothing expense was sufficiently connected to that criminal conduct.

WyomingSteven Randall Marler v. the State of Wyoming

July 17, 20262026 WY 83

The Wyoming Supreme Court affirmed Marler’s convictions and sentences, rejecting challenges to the admission of other-acts evidence, limits on impeachment and the rule of completeness, alleged prosecutorial misconduct, and cumulative error.

The Wyoming Supreme Court affirmed the denial of both parties’ motions to enforce a purported global settlement agreement. It held that the parties lacked mutual assent on essential terms governing ditch access and the visual-storage restriction, leaving the agreement too indefinite to enforce.

WyomingJohn Robert Allen v. the State of Wyoming

July 7, 20262026 WY 72

The court held that Allen’s guilty plea did not waive his challenge to a pretrial order requiring him to liquidate personal property to maintain appointed counsel because the challenge did not concern his guilt, conviction, or plea voluntariness.

WyomingJoshua Michael Idler v. Ashley Nicole Idler

July 6, 20262026 WY 71

The Wyoming Supreme Court summarily affirmed the divorce decree because Father’s opening and reply briefs lacked cogent legal argument and pertinent authority. The Court therefore did not reach the merits of the custody, visitation, or marital-debt issues.