State v. S. Mann

Montana Supreme Court·Decided April 28, 2026·No. DA 23-0380·Published·Swanson

Opinion

04/28/2026

DA 23-0380

Case Number: DA 23-0380

IN THE SUPREME COURT OF THE STATE OF MONTANA 2026 MT 92

STATE OF MONTANA, Plaintiff and Appellee,

v.

SERENITY ALANA MANN, Defendant and Appellant.

APPEAL FROM: District Court of the First Judicial District, In and For the County of Lewis And Clark, Cause No. DDC 2021-552 Honorable Christopher D. Abbott, Presiding Judge

COUNSEL OF RECORD:

For Appellant:

Nicholas T. Hine, Hine Law PLLC, Brooklyn, New York For Appellee:

Austin Knudsen, Montana Attorney General, Selene Koepke, Assistant Attorney General, Helena, Montana

Kevin Downs, Lewis and Clark County Attorney, Mary Barry, Deputy County Attorney, Helena, Montana

Submitted on Briefs: April 1, 2026 Decided: April 28, 2026

Filed:

Clerk

Chief Justice Cory J. Swanson delivered the Opinion of the Court.

¶1 Serenity Alana Mann appeals a conviction for Strangulation of a Partner or Family Member, a felony. Following a jury trial, the First Judicial District Court for Lewis and Clark County sentenced Mann to five years in Montana State Prison, all suspended. We affirm.

¶2 We restate the issue on appeal as follows:

Whether the District Court abused its discretion by permitting other acts testimony.

FACTUAL AND PROCEDURAL BACKGROUND

¶3 Mann and S.R. began dating in 2008. Over the course of the relationship, Mann was physically abusive towards S.R., allegedly engaging in emotional abuse and coercive, forcible, and nonconsensual sexual activities. On November 16, 2021, an altercation ensued between the pair over S.R.’s Facebook conversation with another man. Mann took S.R.’s phone away from her. S.R. regained the phone and attempted to leave the room. Mann followed S.R. into the hallway and knocked her down to the floor. Mann then put S.R. into a “choker hold.”

¶4 Weighing over 300 pounds, Mann is larger and stronger than S.R. It is unclear whether Mann placed a knee or entire body weight on S.R.’s back. S.R. described all this weight on top of her back as “painful” and she “wanted to die because of [sic] the pain wouldn’t stop.” Eventually, Mann ceased choking S.R., and though S.R. did not lose consciousness through this incident but felt “lightheaded.”

¶5 S.R. did not report this assault to law enforcement. That evening, S.R. called her sister, M.R., who didn’t answer. The next day, M.R. returned S.R.’s call. M.R. could tell S.R. had been crying, and S.R. was speaking in a whisper. Concerned about her sister, M.R. picked up S.R. from home and brought S.R. to work with her. S.R. told her sister Mann had taken her phone because she was talking to another person. Mann had deleted S.R.’s Facebook and blocked people. When S.R. attempted to get the phone back, Mann grabbed her and put her in a chokehold. S.R. told M.R. she and Mann had stumbled while Mann had S.R. in the chokehold, and Mann had pushed S.R.’s back, causing her pain.

¶6 On November 18, 2021, Lewis and Clark County Sheriff’s Detective Jess Metcalf contacted S.R. and arranged to meet with her. Unsure of whether S.R. would report any abuse, Detective Metcalf met S.R. and M.R. in an Albertson’s parking lot. During the meeting, S.R. was cooperative, giving Detective Metcalf “a flood of information.” S.R. and M.R. met Detective Metcalf again at the Lewis and Clark County Sheriff’s Office to give formal statements. The Detective described S.R.’s behavior during this interview as “scared, tearful, frightened, concerned, [and] apprehensive.”

¶7 After these two interviews, Detective Metcalf and Detective Ward met with Mann for an informal interview. Mann feigned a lack of knowledge about the choking incident. Later, when detectives attempted to clarify Mann’s statement, Mann accused S.R. of throwing a phone at Mann during an “anger spat.” Mann explained S.R. was talking to “some guy” on Facebook and accused S.R. of trying to bring this person into their relationship. Mann claimed to have “sat there calmly” and threatened to call the police if

S.R. threw the phone again. Mann denied hitting S.R. Mann also claimed to have the right to take away S.R.’s phone because Mann paid for the phone and the cellular service.

¶8 However, when the Detectives asked Mann about the worst thing Mann has ever done to S.R., Mann replied:

Um, we were in a fight one night and she was just getting really, really irritating; agitated. I was getting agitated; she was getting irritating. And so, I flung full out across the, um, bed, pushed her down, and grabbed around her throat, and that was multiple years ago.

Some 10 minutes later, the Deputies arrested Mann, at which point Mann provided a different timeline of the story.

DEPUTY: So the other thing I wanted to tell you is that you’re under arrest, okay. For Partner or Family Member Assault and Strangulation.

MANN: For what?

DEPUTY: For the incident that happened two nights ago.

MANN: It didn’t happen two nights ago.

DEPUTY: Okay, well – MANN: No.

DEPUTY: -- that’s --

MANN: No. It didn’t happen two nights ago, it happened multiple nights ago -- or multiple months ago.

¶9 Prior to the trial, the State provided proposed jury instructions which contained a notice the State intended to introduce M. R. Evid. 404(b) evidence. Mann responded with a Notice of Objection of 404(b) Evidence. The District Court held a hearing on this notice.

¶10 During the hearing, Mann argued the detectives’ recording should be excluded because it consisted of admissions related to a prior assault on the victim, and not the charged conduct. The State argued the specific details in Mann’s admission matched S.R.’s disclosures related to the charged assault, and Mann repeatedly changed the date of the admission, stating initially it happened “multiple years ago,” then “multiple nights ago,” and then “multiple months ago.” Additionally, the State argued some of Mann’s prior threats and acts of violence against S.R. were relevant under M. R. Evid. 404(b) for non-propensity purposes. The State was not using prior acts to show Mann had a propensity for violence. Instead, the State argued the prior acts showed a motive behind the assault and explained the relationship dynamic of power and control.

¶11 On the morning of the trial, the court issued its written order, excluding the portion of the recording where Mann discusses the “worst thing Mann has ever done to the alleged victim” and Mann’s description of the strangulation. The court reserved its ruling on the admissibility of other acts evidence for trial.

¶12 S.R. testified first. When the State attempted to introduce evidence of Mann’s monetary control over S.R., Mann objected to relevance. This being one in what was a series of meritless objections, the deputy county attorney, in a moment of frustration, responded (in the presence of the jury) her question was relevant as to the “controlling nature of [the] relationship.” Because of this comment, Mann moved for a mistrial, and the District Court granted the motion. The court held there is a “high likelihood the jury [is] going to draw a character inference from the way the testimony was presented” and a curative instruction would not fix it. Because there was no proper briefing before the

pretrial hearing, the court explained it could not fully know the scope of S.R.’s testimony and “the State [is] trying to guess at what the Court’s rulings are because [the court has not] been able to give [the parties] anything definitive.”

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