State of Minnesota v. Johnathon Brock Mattson-McCarty

STATE OF MINNESOTA
IN COURT OF APPEALS
A24-1948

State of Minnesota,
Respondent,

vs.

Johnathon Brock Mattson-McCarty,
Appellant.

Filed December 22, 2025
Affirmed
Ede, Judge

Hennepin County District Court
File No. 27-CR-23-23815

Keith Ellison, Attorney General, St. Paul, Minnesota; and

Wynn C. Curtiss, Hopkins City Attorney, Nicole J. Appelbaum and Andrew C. Case,
Assistant City Attorneys, Chestnut Cambronne PA, Minneapolis, Minnesota (for
respondent)

Cathryn Middlebrook, Chief Appellate Public Defender, Hannah Laub, Assistant Public
Defender, St. Paul, Minnesota (for appellant)

Considered and decided by Ede, Presiding Judge; Smith, Tracy M., Judge; and

Cochran, Judge.

SYLLABUS

Under the corpus delicti statute, Minnesota Statutes section 634.03 (2024), when a

district court correctly denies a defendant’s motion for judgment of acquittal based on its

determination that the trial evidence is sufficient to be presented to the jury because

evidence independent of the defendant’s confession reasonably tends to prove that the

defendant committed the charged offense, the court acts within its discretion by declining
to instruct the jury that a confession of the defendant shall not be sufficient to warrant

conviction without evidence that the offense charged has been committed.

OPINION

EDE, Judge

In this appeal from a final judgment of conviction for misdemeanor domestic

assault, appellant argues: (1) that the district court erred by denying his motion for

judgment of acquittal because, under the corpus delicti statute, Minnesota Statutes section

634.03 (2024), the state did not introduce evidence independent of his confession that

reasonably tends to prove that he committed the charged offense; and, in the alternative,

(2) that he is entitled to a new trial because the court abused its discretion by declining to

instruct the jury pursuant to the corpus delicti statute that a confession of the defendant

shall not be sufficient to warrant conviction without evidence that the offense charged has

been committed. We conclude that the district court correctly denied appellant’s motion

for judgment of acquittal based on its determination that, under the corpus delicti statute,

the trial evidence was sufficient to be presented to the jury because evidence independent

of his confession reasonably tends to prove that he committed the charged offense. And

because the district court did not err in this determination, we also conclude that the court

acted within its discretion in denying the requested jury instruction. We therefore affirm.

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 FACTS

Respondent State of Minnesota charged appellant Johnathon Brock

Mattson-McCarty with misdemeanor domestic assault, in violation of Minnesota Statutes

section 609.2242, subdivision 1(2) (2022). The matter proceeded to a jury trial, at which

the state introduced the testimony of a law enforcement officer who responded to the

underlying incident. The district court also received two exhibits—an audio recording of a

911 call about the incident and a video recording from the responding officer’s body-worn

camera. Consistent with applicable law, the following factual summary of the trial evidence

is presented in the light most favorable to the state. 1

In November 2023, an individual called 911 from a restaurant parking lot, reporting:

[I]t seems like there is a domestic dispute in one of the cars
next to me . . . . I’m not hearing anything. I’m just watching
them scream at each other and the guy keeps moving closer and
having like big arm movements towards the other person in the
car.

The 911 caller described the people involved in the incident as being in a “black Ram

truck.”

The officer responded to the scene, observed an individual later identified as

Mattson-McCarty walking away from a black Ram truck, and told him to stop and return,

which Mattson-McCarty did. After asking what was going on, Mattson-McCarty stated

that he was asking the mother of his child to leave his vehicle. The officer turned his

1
See Allwine v. State, 994 N.W.2d 528, 537 (Minn. 2023) (stating that, in reviewing a
district court’s decision on a motion for judgment of acquittal, appellate courts “view all
the evidence presented and draw any inferences in favor of the State”).

3
attention to a woman sitting in the front passenger seat of the black Ram truck and told her

to remain in place.

Mattson-McCarty continued explaining to the officer that he had just found out that

the woman “was talking to someone else” and that he did not want her in his life or in his

truck. Speaking from the front passenger seat of the truck, the woman said to the officer,

“I guess it’s fine.” After telling the woman that his partner was on the way to help sort

things out, the officer asked Mattson-McCarty if the situation had become “physical at all.”

In response, Mattson-McCarty twice admitted to the officer that he had slapped the

woman. 2 Upon further questioning as to why he had done so, Mattson-McCarty stated that

he “didn’t know,” that “it just happened in the moment,” and that the fight occurred because

he “looked on her phone because [he] saw something.” When the officer explained to

Mattson-McCarty that he had been dispatched to the scene because someone had reported

hearing Mattson-McCarty and the woman “yelling and screaming at each other,” Mattson-

McCarty said that he “kind of knew that was coming” and decided that he “need[ed] to

leave this situation somehow . . . but it was too late,” as that was when the officer had

arrived. The body-worn-camera footage introduced at trial depicts the woman providing

the officer with her name, affirming that the child she shares with Mattson-McCarty was

at her residence, and telling the officer that the child was “fine.”

2
Mattson-McCarty also nodded in response to the officer’s subsequent questions about the
assault, in which the officer asked if it was “just the one time”—i.e., “the one slap”—and
whether it occurred “out of frustration.”

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 After the state introduced the foregoing trial evidence and rested its case-in-chief,

Mattson-McCarty moved for judgment of acquittal. Mattson-McCarty argued, among other

things, that the state had not presented sufficient independent evidence to corroborate his

confession, as required by the corpus delicti statute. The prosecutor countered that the state

had introduced such evidence, including the 911 call, Mattson-McCarty’s non-confessional

statements, and the “totality of the circumstances.” The district court denied Mattson-

McCarty’s motion, ruling that “there [was] enough to go to the jury” based on the audio

recording of the 911 call and the officer’s testimony about his investigation.

Following the district court’s denial of Mattson-McCarty’s motion for judgment of

acquittal, defense counsel requested that the court instruct the jury under the first sentence

of the corpus delicti statute, proposing that the instruction state: “A confession of the

defendant shall not be sufficient to warrant conviction without evidence that the offense

charged has been committed.” See Minn. Stat. § 634.04. The state at first opposed this

request in its entirety, asserting that a corpus delicti question requires “a determination for

the judge to make,” that the district court had “made that ruling,” and that it was

inappropriate to allow the jury to decide the issue. Although the state later conditionally

agreed to the requested instruction—subject to the inclusion of additional language—

Mattson-McCarty objected to part of the state’s counter-proposal. The district court

ultimately denied Mattson-McCarty’s request, reasoning that the corpus delicti issue was

for the court to decide, not the jury, and that the court had already ruled on the matter.

Nevertheless, the district court allowed Mattson-McCarty to argue in closing—

without reference to the corpus delicti statute—that the charge was not proven beyond a

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reasonable doubt because his confession was uncorroborated. During deliberations, the

jury asked the district court: “Is admittance evidence?” The district court responded: “You

have all the jury instructions that should address this question.” The jury found

Mattson-McCarty guilty of the charged offense.

This appeal follows.

ISSUES

I. Did the district court erroneously deny Mattson-McCarty’s motion for judgment of
acquittal under the corpus delicti statute based on its determination that evidence
independent of his confession reasonably tends to prove that he committed the
charged offense?

II. Did the district court abuse its discretion by declining to instruct the jury under the
corpus delicti statute that a confession of the defendant shall not be sufficient to
warrant conviction without evidence that the offense charged has been committed?

ANALYSIS

I. The district court correctly denied Mattson-McCarty’s motion for judgment
of acquittal because evidence independent of his confession reasonably tends to
prove that he committed the charged offense.

Mattson-McCarty principally challenges the district court’s decision to deny his

motion for judgment of acquittal under the corpus delicti statute, contending that reversal

is warranted because the state did not introduce evidence independent of his confession

that reasonably tends to prove that he committed the charged offense. The state responds

that it met its corpus delicti burden by presenting ample evidence that Mattson-McCarty

assaulted the woman, independent of his confession, such that the district court correctly

denied his motion for judgment of acquittal. We agree with the state.

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 “A motion for acquittal is ‘procedurally equivalent to a motion for a directed

verdict.’” State v. McCormick, 835 N.W.2d 498, 506 (Minn. App. 2013) (quoting State v.

Slaughter, 691 N.W.2d 70, 74 (Minn. 2005)), rev. denied (Minn. Oct. 15, 2013). “A motion

for a directed verdict presents the district court with a question of law.” Id. (citing M.W.

Ettinger Transfer & Leasing Co. v. Schaper Mfg., Inc., 494 N.W.2d 29, 34 (Minn. 1992)).

“We review questions of law de novo” and “[o]ur review . . . is not deferential.” Id. “The

test for granting a motion for acquittal is whether the evidence is sufficient to present a fact

question for the jury’s determination.” Allwine, 994 N.W.2d at 537 (quotation omitted).

“‘[I]f the evidence is insufficient to sustain a conviction’ on any of the charges, the district

court should grant the motion for a judgment of acquittal as to those charges.” Id. (quoting

Minn. R. Crim. P. 26.03, subd. 18(1)(a)). “A district court may only deny the motion when

the evidence is sufficient to present a factual question for the jury.” Id. “In determining

whether to grant the motion, the district court does not consider the weight and credibility

of the evidence.” Id. In an appeal from a district court’s decision on a motion for judgment

of acquittal, appellate courts “view all the evidence presented and draw any inferences in

favor of the State.” Id.

Appellate courts also review de novo a district court’s application of the corpus

delicti statute to the evidence in a particular case. State v. Hill, 23 N.W.3d 824, 829 (Minn.

2025); see also State v. Holl, 966 N.W.2d 803, 814 (Minn. 2021) (holding that appellate

courts “review the application of Minn. Stat. § 634.03 to the facts of this case on a de novo

basis”). The corpus delicti statute provides:

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 A confession of the defendant shall not be sufficient to
warrant conviction without evidence that the offense charged
has been committed; nor can it be given in evidence against the
defendant whether made in the course of judicial proceedings
or to a private person, when made under the influence of fear
produced by threats.

Minn. Stat. § 634.03.

“[T]he plain language of the corpus delicti statute is satisfied when there is

independent evidence that reasonably tends to prove the defendant committed the charged

offense.” Hill, 23 N.W.3d at 833 (quotation omitted). “[T]he limited purpose of the corpus

delicti statute” is “to avoid prosecutions for nonexistent crimes when the only evidence of

the crime is a defendant’s confession,” and “the quantum of evidence necessary to achieve

this limited purpose is not high.” Id. “The State need not corroborate each individual

element of the underlying offense, and circumstantial evidence can be sufficient to

corroborate a defendant’s confession.” Id. at 836. Indeed, “the corpus delicti

statute . . . imposes a lesser burden than the due process requirement for proof beyond a

reasonable doubt.” Id.

In order to prove Mattson-McCarty guilty of misdemeanor domestic assault, the

state needed to show: (1) that Mattson-McCarty intentionally inflicted or attempted to

inflict bodily harm upon the woman; and (2) that the woman was Mattson-McCarty’s

family or household member. See Minn. Stat. § 609.2242, subd. 1(2); see also Minn. Stat.

§ 609.02, subd. 10(2) (2022) (defining “assault” as including “the intentional infliction of

or attempt to inflict bodily harm upon another”).

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 Viewing the trial record in the light most favorable to the state, we conclude that the

state presented sufficient evidence, independent of Mattson-McCarty’s confession, to

satisfy the corpus delicti statute. In the audio recording of the 911 call, the caller describes

what “seem[ed] like . . . a domestic dispute in one of the cars next to [the caller]”—

specifically, a black Ram truck. The caller also reports watching the parties involved in the

dispute “scream at each other” and states that “the guy [kept] moving closer and

having . . . big arm movements towards the other person in the car.” The officer’s

testimony and body-worn-camera footage show that Mattson-McCarty was present at the

scene of the reported incident and was walking away from a black Ram truck when the

officer arrived. The officer observed and the video footage depicts a woman in the front

passenger seat of the truck. The woman’s initial statement to the officer—“I guess it’s

fine”—circumstantially suggests that an incident had occurred. And the woman provided

the officer with her name and affirmed that the child she shared with Mattson-McCarty

was safe at her residence.

We are satisfied that this evidence, which is independent of Mattson-McCarty’s

confession to slapping the woman, reasonably tends to prove that he committed the charged

offense of misdemeanor domestic assault by violating subdivision 1(2) of section

609.2242. See Hill, 23 N.W.3d at 833. In its totality, the independent evidence establishes

by the necessary quantum—which “is not high”—that this was not a prosecution for a

nonexistent crime based only on Mattson-McCarty’s confession. See id. Although the

independent evidence may neither directly corroborate each individual element of

misdemeanor domestic assault nor meet the due-process requirement for proof beyond a

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reasonable doubt, the evidence need not meet those standards to satisfy the corpus delicti

statute. See id. at 836. Because the independent evidence as a whole—both direct and

circumstantial—sufficiently corroborates Mattson-McCarty’s confession and reasonably

tends to prove that he committed the charged offense, the district court correctly denied his

motion for judgment of acquittal based on its determination that, under the corpus delicti

statute, the trial evidence was sufficient to be presented to the jury. See id.; see also Allwine,

994 N.W.2d at 537.

II. The district court acted within its discretion by declining to instruct the jury
under the corpus delicti statute that a confession of the defendant shall not be
sufficient to warrant conviction without evidence that the offense charged has
been committed.

Mattson-McCarty alternatively maintains that the district court abused its discretion

by declining to instruct the jury under the corpus delicti statute that a confession of the

defendant shall not be sufficient to warrant conviction without evidence that the offense

charged has been committed. He further asserts that this decision by the district court likely

had a significant impact on the verdict. The state counters that the district court properly

exercised its discretion by declining to provide the requested jury instruction. Here again,

we agree with the state.

A district court has broad discretion in determining how to instruct a jury, and

appellate courts will not reverse when the jury instructions “overall fairly and correctly

state the applicable law.” State v. Larkin, 994 N.W.2d 280, 289 (Minn. 2023) (quotation

omitted). “A defendant is entitled to a specific instruction if the trial evidence supports the

instruction and the substance of the proposed instruction is not already contained in

10
instructions chosen by the district court.” State v. Nelson, 806 N.W.2d 558, 564 (Minn.

App. 2011) (citing State v. Gatson, 801 N.W.2d 134, 147–48 (Minn. 2011); State v. Yang,

774 N.W.2d 539, 559 (Minn. 2009)), rev. denied (Minn. Feb. 14, 2012). “An error in jury

instructions is not harmless and a new trial should be granted if it cannot be said beyond a

reasonable doubt that the error had no significant impact on the verdict.” State v. Chauvin,

989 N.W.2d 1, 28 (Minn. App. 2023) (quoting State v. Kuhnau, 622 N.W.2d 552, 558–59

(Minn. 2001)), rev. denied (Minn. July 18, 2023).

In contending that the district court abused its discretion in declining to give his

requested instruction, Mattson-McCarty analogizes evidence of his confession to the

testimony of an accomplice, which requires a corroboration instruction under Minnesota

Statutes section 634.04 (2024). This argument is unavailing. 3

The corpus delicti and accomplice-corroboration requirements are located in

different statutes that serve distinct purposes. Compare Minn. Stat. § 634.03 (establishing

when confessions are insufficient to warrant conviction and when they are inadmissible),

3
We rejected a similar argument in State v. Boyum, No. A13-1901, 2014 WL 4494285, at
*3 (Minn. App. 2014). Although Boyum is nonprecedential and therefore not binding, we
conclude that the decision is persuasive authority and adopt its reasoning here. See Minn.
R. Civ. App. P. 136.01(c) (“Nonprecedential opinions . . . are not binding authority except
as law of the case, res judicata or collateral estoppel, but nonprecedential opinions may be
cited as persuasive authority.”). Mattson-McCarty characterizes Boyum as merely
“mention[ing] that the jury instruction issue did not matter because there was clearly
independent evidence of the charged crime separate from the defendant’s confession.” And
Mattson-McCarty contends that Boyum is distinguishable because he claims that, here, “the
state did not provide independent evidence tending to prove that the charged crime
occurred.” In light of our decision above that evidence independent of Mattson-McCarty’s
confession reasonably tends to prove that he committed the charged offense, we conclude
that Boyum is analogous and persuasive authority that provides helpful guidance for our
analysis herein.

11
with Minn. Stat. § 634.04 (precluding convictions based on uncorroborated accomplice

testimony). The corpus delicti statute “discourages coercively acquired confessions,”

“requires that admissions and confessions from defendants are reliable,” and “avoid[s]

prosecutions for nonexistent crimes when the only evidence of the crime is a defendant’s

confession.” Hill, 23 N.W.3d at 829, 833 (quotation omitted). By contrast, because an

accomplice may provide false testimony that minimizes their own guilt, there is a “very

real possibility that a jury might discredit all testimony except the accomplice testimony,

and thus find the defendant guilty on the accomplice testimony alone.” State v. Cox,

820 N.W.2d 540, 548 (Minn. 2012) (quotation omitted). Given that “the credibility of an

accomplice is inherently untrustworthy,” a mandatory instruction under the accomplice

statute helps juries evaluate the credibility of such witnesses. State v. Evans, 756 N.W.2d

854, 877 (Minn. 2008).

Moreover, a determination of corroboration under the corpus delicti statute has

traditionally fallen within the purview of the district court rather than the jury. See Minn.

Stat. § 634.03 (outlining circumstances under which “[a] confession of the

defendant . . . can[not] . . . be given in evidence against the defendant,” i.e., when a

confession is inadmissible); In re C.M.A., 671 N.W.2d 597, 601 (Minn. App. 2003)

(explaining that the corpus delicti statute “may also be used, in an appropriate case, by a

trial judge when deciding whether there is sufficient evidence for a case to go to the jury”);

cf. Holl, 966 N.W.2d at 814 (observing that “the jury was never presented with an

instruction related to the corroboration requirement in section 634.03 and therefore did not

consider whether the evidence was sufficient to satisfy the statute”); State v. Turnipseed,

12
297 N.W.2d 308, 312 (Minn. 1980) (observing that “courts have emphasized that tests for

sufficiency of evidence to support a conviction should be distinguished conceptually from

jury instructions, and that not every sufficiency of evidence test should be read to the jury”).

Mattson-McCarty has cited no precedential Minnesota authority holding that a

district court must provide an instruction similar to what he requested here after denying a

motion for judgment of acquittal under the corpus delicti statute. Nor are we aware of any

such precedent. Instead, analogous caselaw indicates that district courts act within their

discretion in declining to provide such an instruction. In State v. Weber, the Minnesota

Supreme Court held that a district court need not give a corroboration instruction when a

defendant stipulated that a crime was committed. 137 N.W.2d 527, 530–31 (Minn. 1965).

The defendant in Weber was charged with second-degree assault, stipulated that the victim

had been assaulted and had suffered grievous bodily harm, but denied that he had inflicted

the harm. Id. at 529–30. The supreme court concluded that no corroboration instruction

was necessary based on the defendant’s stipulation, reasoning that, “once a corpus delicti

is established, [a] defendant can be convicted on [their] own admission.” Id. at 531. Here,

as we have explained, evidence independent of Mattson-McCarty’s confession reasonably

tends to prove that he committed the charged offense, likewise supporting the district

court’s decision not to provide the jury with a corroboration instruction under the corpus

delicti statute.

We therefore hold that, under the corpus delicti statute, when a district court

correctly denies a defendant’s motion for judgment of acquittal based on its determination

that the trial evidence is sufficient to be presented to the jury because evidence independent

13
of the defendant’s confession reasonably tends to prove that the defendant committed the

charged offense, the court acts within its discretion by declining to instruct the jury that a

confession of the defendant shall not be sufficient to warrant conviction without evidence

that the offense charged has been committed. Applying that holding to the matter before

us, we conclude that, after correctly denying Mattson-McCarty’s motion for judgment of

acquittal based on its determination under the corpus delicti statute that the trial evidence

was sufficient to go to the jury, the district court acted within its discretion by declining to

provide the jury with Mattson-McCarty’s requested instruction. 4

DECISION

The district court correctly denied Mattson-McCarty’s motion for judgment of

acquittal because evidence independent of his confession reasonably tends to prove that he

committed the charged offense. Under the corpus delicti statute, when a district court

correctly denies a defendant’s motion for judgment of acquittal based on its determination

that the trial evidence is sufficient to be presented to the jury because evidence independent

of the defendant’s confession reasonably tends to prove that the defendant committed the

charged offense, the court acts within its discretion by declining to instruct the jury that a

confession of the defendant shall not be sufficient to warrant conviction without evidence

that the offense charged has been committed. Thus, the district court acted within its

4
Because we conclude that the district court acted within its discretion in declining to
provide Mattson-McCarty’s requested jury instruction, we need not address the parties’
harmless-error arguments. Cf. Chauvin, 989 N.W.2d at 28.

14
discretion in declining to provide Mattson-McCarty’s requested corpus delicti instruction

to the jury.

Affirmed.

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