Mark Coleman Helms, II v. The State of Wyoming

2026 WY 24
CourtWyoming Supreme Court
DecidedFebruary 23, 2026
DocketS-25-0104
StatusPublished

This text of 2026 WY 24 (Mark Coleman Helms, II v. The State of Wyoming) is published on Counsel Stack Legal Research, covering Wyoming Supreme Court primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Mark Coleman Helms, II v. The State of Wyoming, 2026 WY 24 (Wyo. 2026).

Opinion

THE SUPREME COURT, STATE OF WYOMING

2026 WY 24

OCTOBER TERM, A.D. 2025

February 23, 2026

MARK COLEMAN HELMS, II,

Appellant (Defendant),

v. S-25-0104

THE STATE OF WYOMING,

Appellee (Plaintiff).

Appeal from the District Court of Converse County The Honorable F. Scott Peasley, Judge

Representing Appellant: Office of Public Defender: Brandon T. Booth, State Public Defender; Kirk A. Morgan, Chief Appellate Counsel; Jeremy Meerkreebs, Assistant Appellate Counsel. Argument by Mr. Meerkreebs.

Representing Appellee: Keith G. Kautz, Attorney General: Jenny L. Craig, Deputy Attorney General; Kristen R. Jones, Senior Assistant Attorney General. Argument by Ms. Jones.

Before BOOMGAARDEN, C.J., and GRAY, FENN, and JAROSH, JJ, and EAMES, DJ.

NOTICE: This opinion is subject to formal revision before publication in Pacific Reporter Third. Readers are requested to notify the Clerk of the Supreme Court, Supreme Court Building, Cheyenne, Wyoming 82002, of any typographical or other formal errors so that correction may be made before final publication in the permanent volume. FENN, Justice.

[¶1] A jury convicted Mark Coleman Helms, II, of second-degree murder. On appeal, he claims the district court should have granted his motion to dismiss the prosecution on the grounds of self-defense immunity under Wyoming Statute § 6-2-602(f) (2023). He also asserts the district court erred in providing an altered presumption of malice instruction and the evidence was insufficient to support his conviction. We affirm.

ISSUES

[¶2] Mr. Helms raises four issues, which we rephrase as follows:

I. Did the district court abuse its discretion when it precluded Dr. Holmberg from testifying at the motion to dismiss hearing?

II. Did the district court err when it found Mr. Helms failed to establish a prima facie showing he was entitled to immunity from prosecution under Wyoming Statute § 6- 2-602?

III. Did the district court err when it gave an altered presumption of malice instruction that did not specifically indicate the State had the burden of proving malice beyond a reasonable doubt?

IV. Was the evidence sufficient to support Mr. Helms’s conviction for second-degree murder?

FACTS

[¶3] At approximately 11:49 p.m. on September 13, 2023, Mark Helms called 911 to report he had shot someone. Mr. Helms told the 911 operator he “misunderstood a [] person,” and he thought this person was breaking into his home, so he shot him. Mr. Helms also told the 911 operator the person he shot was his cousin.

[¶4] Officers were dispatched to Mr. Helms’s home in Douglas, Wyoming. After Mr. Helms and his wife, Grace,1 exited the residence, they were secured in separate police vehicles. Officers then entered the home and found the victim, who was later identified as Nicholas Velazquez, lying on the floor just outside the master bedroom. Mr. Velazquez’s arms were elevated above his head, and his shirt was slightly raised. A folded pocketknife

1 We will refer to Grace Helms by her first name for clarity.

1 was found approximately a foot above Mr. Velazquez’s head. It was later determined this knife belonged to Mr. Helms. Officers also found chewing tobacco on the floor around Mr. Velazquez’s head. Mr. Helms informed the officers he had swept the chew out of Mr. Velazquez’s mouth with his fingers while attempting to perform CPR. Officers located an AK-47 rifle lying on a chair in the master bedroom and one bullet casing on the floor near the window.

[¶5] Mr. Helms spoke with the officers and told them he had invited his cousin, Mr. Velazquez, to come to his home to talk about getting his VA benefits sorted out. Mr. Velazquez brought beer and a fifth of whiskey. Mr. Helms took Mr. Velazquez on a tour of the home. Although Mr. Helms could remember going down into the basement and coming back upstairs, he could not remember what happened from the time they got back upstairs until he was performing CPR on Mr. Velazquez.

[¶6] Over the course of the next several hours, Mr. Helms offered multiple theories for what might have happened once they reached the top of the stairs. He initially theorized Mr. Velazquez may have been suicidal and may have done something that intentionally led to the shooting. Mr. Helms claimed Mr. Velazquez had a mask or something covering his face and charged at him with something in his hand that could have been a weapon. Later, he said Mr. Velazquez was happier than he had been in years, and there was no hostility or negativity between them of any kind. At one point, he theorized it might have been Grace who fired the shot. After speaking with Grace on the phone, Mr. Helms focused on the theory he had seen someone in the house who he did not recognize, and the person he shot turned out to be Mr. Velazquez.

[¶7] Mr. Helms also gave inconsistent details about what substances he consumed that night. Although he had previously stated he only consumed alcohol, he later admitted to smoking “legal [] weed” he had purchased from a store in town and taking a “gummy” that may have contained synthetic THC2 just before Mr. Velazquez arrived. Mr. Helms agreed to submit to a portable breath test at the scene, which indicated his blood alcohol level was .225. He also agreed to submit a urine sample, which tested positive for THC.

[¶8] The State charged Mr. Helms with one count of first-degree murder in violation of Wyoming Statute § 6-2-101(a) (2023). Mr. Helms entered pleas of not guilty and not guilty by reason of mental illness (NGMI). The district court ordered the Wyoming State Hospital to examine Mr. Helms pursuant to Wyoming Statute § 7-11-304 (2023). After performing her examination of Mr. Helms, the designated examiner, Dr. Elizabeth Donegan, concluded he did not meet the criteria for an NGMI defense because his “voluntary ingestion of more than one mind and mood altering substance . . . in proximity to the alleged incident would have impacted his functioning and contributed to behaviors and events during that time.”

2 THC, or tetrahydrocannabinol, is “the psychoactive component of the cannabis plant . . . .” Wyo. Stat. Ann. § 11-51-101(a)(vii) (2023).

2 Mr. Helms asked the district court to appoint a second evaluator pursuant to Wyoming Statute § 7-11-304(g). The district court granted this request, and Mr. Helms’s chosen designated examiner, Dr. Trent Holmberg, concluded Mr. Helms did satisfy the criteria for an NGMI defense because Mr. Helms had a posttraumatic stress disorder (PTSD) flashback that was “primarily responsible for his brief dissociative reaction at the time of the shooting.”

[¶9] Mr. Helms filed a motion to dismiss the prosecution on the grounds of self-defense immunity under Wyoming Statute § 6-2-602(f), and he requested a hearing on his motion. The district court held a hearing on Mr. Helms’s motion as required by State v. John, 2020 WY 46, ¶ 40, 460 P.3d 1122, 1134 (Wyo. 2020) (John Hearing). Mr. Helms asked to call Dr. Holmberg as a witness at the John Hearing to opine Mr. Helms was not “malingering or making up the lack of memory.” The district court found Wyoming Statute § 7-11- 304(h) prohibited designated examiners from testifying about anything other than a defendant’s mental condition, and it precluded Dr. Holmberg from testifying.

[¶10] After hearing the testimony of the witness called by Mr. Helms, the district court found it had no evidence “that would demonstrate directly or even by inference that there was reasonable force used by [Mr. Helms].” The district court found Mr. Helms failed to make a prima facie showing of self-defense and denied his motion to dismiss the prosecution.

[¶11] The case proceeded to a five-day jury trial. The district court held a jury instruction conference on the third day of the trial.

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