State v. J. Stinger

2026 MT 46
CourtMontana Supreme Court
DecidedMarch 10, 2026
DocketDA 24-0663
StatusPublished
AuthorGustafson

This text of 2026 MT 46 (State v. J. Stinger) is published on Counsel Stack Legal Research, covering Montana Supreme Court primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
State v. J. Stinger, 2026 MT 46 (Mo. 2026).

Opinion

03/10/2026

DA 24-0663 Case Number: DA 24-0663

IN THE SUPREME COURT OF THE STATE OF MONTANA

2026 MT 46

STATE OF MONTANA,

Plaintiff and Appellee,

v.

JUSTIN CASEY STINGER,

Defendant and Appellant.

APPEAL FROM: District Court of the Fourth Judicial District, In and For the County of Missoula, Cause No. DC-22-406 Honorable Robert L. Deschamps III, Presiding Judge

COUNSEL OF RECORD:

For Appellant:

Larry D. Mansch, Tobias J. Cook, Snyder, Beaudry & Cook P.C., Missoula, Montana

For Appellee:

Austin Knudsen, Montana Attorney General, Mardell Ployhar, Assistant Attorney General, Helena, Montana

Matthew Jennings, Missoula County Attorney, Ryan Mickelson, Deputy County Attorney, Missoula, Montana

Submitted on Briefs: December 17, 2025

Decided: March 10, 2026 Filed:

__________________________________________ Clerk Justice Ingrid Gustafson delivered the Opinion of the Court.

¶1 Justin Stinger appeals from his Fourth Judicial District Court jury conviction of

Partner or Family Member Assault (PFMA) by Reasonable Apprehension (3rd or

Subsequent Offense), Destruction/Tampering of a Communication Device, Aggravated

Assault by Reasonable Apprehension, Strangulation of Partner or Family Member

(1st Offense), and PFMA Causing Bodily Injury (3rd or Subsequent Offense). Stinger

asserts he was denied due process from the outset of his case, and his conviction was the

result of cumulative error. Specifically, Stinger argues that law enforcement officers filed

false reports and breached protocol, he experienced judicial bias at his initial sentencing

hearing, the District Court lacked control over the proceedings at trial, and the State

knowingly presented false or misleading testimony which it then failed to correct. We

restate the issues on appeal as follows:

1. Whether Stinger’s unpreserved claims warrant plain error review.

2. Whether the cumulative effect of errors warrants a new trial.

FACTUAL AND PROCEDURAL BACKGROUND

¶2 This case arises from two separate incidents involving Stinger and his then wife,

Kasondra. Stinger and Kasondra married in 2008 and had two children together, Kiley and

Jaxson. The couple co-owned a roofing company, as well as a dog breeding business, the

kennel for which was located at the family’s home in Huson, Missoula County, Montana.

Prior to the events giving rise to this case, the relationship between Stinger and Kasondra

2 had been marked by periodic episodes of aggression and intimidation, contributing to

ongoing tensions within their household.

¶3 The first incident giving rise to this case arose on June 20, 2022. Kasondra, Stinger,

and the children had spent the day in Missoula with Kasondra’s parents as part of a joint

Father’s Day celebration and had returned home for a casual evening. Kasondra and

Stinger opened a bottle of wine and were in the living room with Jaxson (age 8), when

Kiley (age 10) came in trying to find a piece of orthodontic equipment. Stinger quickly

became upset and asked Kasondra if she was “too effing stupid to help [Kiley] keep track

of it.” Jaxson interjected, reminding his dad that Kiley had actually given the expander to

him (Stinger) to keep track of. Stinger approached Jaxson and yelled at him to “shut the

fuck up,” causing Jaxson to cry. Kasondra, concerned for Jaxson’s safety, put herself

between Jaxson and Stinger to keep Stinger from being able to physically get to Jaxson.

According to Kasondra, she was “holding” Stinger off of Jaxson when Stinger “shove[d]

[her] almost to the ground” and then ran to Kiley’s room, where he forced open the door

and found Kiley on the phone with 911.

¶4 During the 911 call, Kiley informed the operator that her dad was yelling, drunk,

and raising his voice at her brother. The operator asked Kiley if her dad had any weapons,

to which Kiley responded, “just his hands.” Kiley explained she thought her dad might

hurt someone and told the operator she had locked herself in her room. Kiley then began

yelling into the phone, “He’s coming! He’s coming!” before the call was ended.

3 ¶5 The 911 operator called Kiley’s cell phone back and Kasondra picked up, explaining

her daughter had been the one to call. The operator asked Kasondra, “Are you free to speak

freely?” to which Kasondra responded, “No.” When asked, “Has he laid hands on you?”

Kasondra responded, “Kind of.” Kasondra then explained to the operator that she was

trying to get her car keys and was going to get the kids in the car and leave the property.

¶6 Deputy Jackson Sedgwick and Deputy Nicholas Janttie of the Missoula County

Sheriff’s Office met Kasondra on a road a few miles from her home. The deputies’

conversations with Kasondra, Jaxson, and Kiley were captured by Sedgwick’s dashcam

and Janttie’s bodycam. Footage shows Sedgwick initially approached the driver’s side of

Kasondra’s vehicle, introduced himself, and asked, “What’s going on tonight?” Kasondra

stated that her “husband just freaked out” and “started screaming” and “like attacked us

all.” Sedgwick asked what she meant by “attacked us all,” and Kasondra explained Stinger

screamed at Jaxson, pushed her out of the way, and pushed down Kiley’s door to scream

at her. Sedgwick then had Kasondra step out of the car to talk and she provided him and

Janttie with the details of how the fight began and Stinger’s history of being abusive

towards her. Kasondra was crying throughout much of the conversation and became

increasingly hysterical as she explained she had placed herself between Stinger and Jaxson

as Stinger was trying to “get at” Jaxson. Sedgwick told Kasondra to take some breathers

and asked, “How was [Stinger] running at [Jaxson]?” Kasondra responded by explaining

she was not sure what Stinger was going to do to Jaxson, just that he “kept trying to get at

him” and that she had to “push him back” because she “wasn’t sure what he was going to

4 do”; she “just wanted to make sure he did not touch [Jaxson],” but Stinger “just kept

pushing” and she kept “getting in front of him” to make sure “he did not get to [Jaxson].”

¶7 Sedgwick then asked Jaxson to step out of the vehicle and the two of them talked as

Janttie continued to interview Kasondra. During Sedgwick’s interview of Jaxson, Jaxson

was not crying but was visibly anxious, playing with his hands and sucking his thumb.

Jaxson explained to Sedgwick that his dad started “yelling and cussing” at everyone and

“pushing [his] mom.” Jaxson stated he had been scared because he “didn’t want anything

bad to happen,” “like [his] dad hurting [his] mom, or like him hurting [Jaxson].” Jaxson

said he thought Stinger may “push [him] or like scream at [him]” and explained, “in the

past, this happened before” and that Stinger used a shovel to smash a windshield of one of

their cars.

¶8 After talking with Jaxson, Sedgwick interviewed Kiley. While Kiley’s back was

turned to the dash cam, her voice was shaky and at several points she could be heard audibly

crying and sniffling. She explained to Sedgwick that she ran to her room and called 911

when her dad started yelling but that he then pushed through her door. Kiley said after her

dad grabbed her phone and hung up with the police, he “kept like stepping closer” to her,

making her “really uncomfortable,” and yelling at her, asking “[w]hy did you effing call

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2026 MT 46, Counsel Stack Legal Research, https://law.counselstack.com/opinion/state-v-j-stinger-mont-2026.