State v. Tuopeh (2025 S.D. 16): Double Jeopardy Is Avoided by Entering Judgment on Only One Homicide Count; No Right to an Alternative-Counts Instruction

1. Introduction

State v. Tuopeh arises from the fatal beating of Christopher Mousseaux outside the Red Sea Pub in downtown Sioux Falls. Surveillance video captured much of the incident: after Mousseaux—highly intoxicated—threw an initial punch, he retreated and fell, at which point Steven Tuopeh and Jeff Pour repeatedly punched and kicked him. Mousseaux died days later from blunt-force traumatic brain injury.

Tuopeh and Pour were initially charged together with second-degree murder (depraved mind) and first-degree manslaughter (heat of passion) (a third manslaughter count was later dismissed). The cases were severed after Pour pleaded guilty. At Tuopeh’s trial, the jury returned guilty verdicts on both remaining homicide counts. The circuit court ultimately left only one conviction for sentencing purposes and imposed life without parole on the second-degree murder count.

On appeal, Tuopeh challenged (among other things) the refusal to give an “alternative counts” instruction, evidentiary rulings involving an unavailable jailhouse witness, alleged prosecutorial vouching, expert testimony on cause of death, denial of acquittal, denial of statutory self-defense immunity under SDCL 22-18-4.8, and admission of a notebook page containing violent and offensive rap lyrics.

2. Summary of the Opinion

The South Dakota Supreme Court affirmed. The Court held:

  • The circuit court did not abuse its discretion by refusing Tuopeh’s proposed “alternative counts” instruction; the jury could return guilty verdicts on multiple homicide counts arising from the same act, and double jeopardy is addressed at the judgment/sentencing stage by entering judgment on only one count.
  • The circuit court did not err in treating Robinson (the inmate informant) as unavailable, and did not abuse its discretion in excluding double-hearsay testimony about Pour’s alleged brass-knuckles admission due to insufficient corroboration/trustworthiness under SDCL 19-19-804(b)(3).
  • The prosecutor’s “my job is justice” comment, in context as rebuttal to defense counsel’s “sell you something” argument, was not impermissible vouching.
  • Dr. Snell’s cause-of-death and force-related opinions were within permissible expert testimony and not improper speculation.
  • The court properly declined additional “speculation and conjecture” definitional instructions because the standard instruction already warned against speculation.
  • The evidence was sufficient to support second-degree murder, including on an aiding-and-abetting theory.
  • The State overcame Tuopeh’s prima facie self-defense claim by clear and convincing evidence under SDCL 22-18-4.8; continued pursuit and the use of deadly force against a fallen, non-threatening victim was unreasonable.
  • Admission of the notebook page for identification (linking “Ceno” to Tuopeh) with a limiting instruction was not an abuse of discretion and was not prejudicial.

3. Analysis

A. Precedents Cited

Standards for jury instructions and abuse of discretion

  • State v. Schumacher (instruction wording/arrangement reviewed for abuse of discretion) and State v. Carter (abuse of discretion definition, quoting State v. Snodgrass) supplied the framework for reviewing the refusal of proposed instructions.
  • State v. Ortiz-Martinez emphasized that instructional error is reversible only if prejudicial.
  • State v. Hauge and State v. Janklow reinforced that there is no abuse of discretion in refusing an instruction that is not a correct statement of law, and that instructions are assessed “as a whole.”

Double jeopardy, multiple verdicts, and the “alternative counts” dispute

  • Wilcox v. Leapley provided the baseline principle: double jeopardy prohibits “more than one homicide” conviction/punishment for a single death. The Court treated Wilcox’s suggestion that prosecutors charge in the alternative as guidance—not a rule requiring alternative-count submission to the jury.
  • State v. Well was distinguished: it involved “mutually exclusive” offenses. The Court explained that this rationale does not fit homicide counts here, particularly in light of later statutory and doctrinal developments.
  • State v. McCahren was invoked to explain why lesser-included offenses are not “mutually exclusive,” reinforcing the Court’s rejection of Tuopeh’s framing.
  • Ball v. United States was the centerpiece: it permits simultaneous prosecutions and jury consideration of multiple counts arising from the same act, but requires avoiding multiple convictions/sentences by entering judgment on only one offense if the jury returns multiple guilty verdicts.
  • Rutledge v. United States was cited by Tuopeh to support the double-jeopardy concern; the Court’s analysis ultimately aligned with Ball’s remedy concept.
  • State v. Washington was treated as the modern, controlling South Dakota articulation: the constitutional problem is the imposition of multiple convictions, not merely multiple charges or verdicts. Washington also supplied remedial guidance—include “express language stating that no judgment of conviction is being entered” on redundant counts.
  • State v. Baker and State v. Manning supported the proposition that the State may charge multiple counts to “meet the evidence which may be adduced,” and is not necessarily required to pick one theory when multiple viable theories are supported by the evidence.

Compulsory process, unavailability, continuances, and missing witnesses

  • State v. Crawford (quoting U.S. v. Griffin) supplied the key Sixth Amendment principle: compulsory process requires that a witness be brought to court, but does not guarantee the witness will testify after refusing; the right is “exhausted” upon appearance and refusal.
  • State v. Letcher set out the criteria for continuances based on an absent witness (materiality, due diligence, and reasonable certainty of procurement). The Court used Letcher to underscore why more delay would not have solved the Robinson problem.

Hearsay trustworthiness and statements against penal interest

  • State v. Cottier supplied trustworthiness factors (character, oath/cross, motivation, personal knowledge, recantation, corroboration, unavailability), which the circuit court used to evaluate whether the proffered statement could come in under SDCL 19-19-804(b)(3)’s corroboration requirement.

Prosecutorial misconduct and vouching

  • State v. Hankins provided the preserved-error standard (abuse of discretion) and the two-part misconduct/prejudice inquiry.
  • State v. Nelson and State v. Manning articulated the vouching concern: placing the government’s prestige behind a witness or inviting reliance on the prosecutor’s assessment of truth.
  • Harris v. Fluke was the comparator case where the prosecutor’s closing argument improperly vouched by referencing a personal, evaluative decision to bring the case based on reviewing the evidence. The Court distinguished that scenario from the rebuttal comment here.

Expert testimony and sufficiency of evidence review

  • State v. Fisher supported allowing qualified experts to testify on cause of injuries/death and related medical opinions.
  • State v. Peneaux (quoting State v. Timmons and State v. Frias) supplied the de novo sufficiency standard: whether any rational juror could find elements beyond a reasonable doubt when viewing the evidence favorably to the State.
  • State v. Harruff provided interpretive guidance on “depraved mind” for SDCL 22-16-7 prosecutions.

Standards for reviewing immunity determinations and jury compliance with limiting instructions

  • State v. Heney (quoting State v. Hess) provided the general approach: factual findings reviewed for clear error, legal application reviewed de novo. The Court adopted de novo review for applying SDCL 22-18-4.8’s standard to the facts.
  • State v. Shelton supported the presumption that juries follow limiting instructions, relevant to the notebook evidence.

B. Legal Reasoning

1) No entitlement to an alternative-counts instruction in this setting

The Court treated Tuopeh’s proposed instruction as legally and practically flawed. First, it inaccurately described the charging posture by presenting second-degree manslaughter as a “charge” rather than a lesser-included offense presented by instruction. More fundamentally, it would have required the jury to acquit on one homicide count if it convicted on the other—an approach the Court said is not mandated by double jeopardy law.

The Court’s doctrinal pivot is to separate (a) permissible charging and verdict practice from (b) impermissible multiple convictions/sentences. Relying heavily on Ball v. United States and its own recent decision in State v. Washington, the Court explained: the prosecution may submit multiple supported counts to the jury, the jury may return multiple guilty verdicts, and the constitutional protection is implemented when the trial court enters judgment—by entering judgment on only one count and ensuring the remaining count(s) do not become additional convictions.

2) Robinson’s refusal: compulsory process ends where testimony will not occur

Tuopeh framed Robinson as a compulsory-process problem. The Court rejected that framing: Robinson was subpoenaed, refused to come out of his cell, and the court reasonably classified him as unavailable under SDCL 19-19-804(a)(2). Compelling physical presence would have been “manifestly futile” given the record. The Court emphasized that compulsory process does not guarantee testimony—only process.

3) Excluding the brass-knuckles claim as double hearsay lacking corroboration

Tuopeh sought to admit Detective Marino’s testimony recounting Robinson’s recounting of Pour’s alleged admission—classic “double hearsay.” The Court agreed the opposing-party exclusion did not apply because “the opposing party” was the State, not Pour. For the statement-against-interest exception, the Court upheld the circuit court’s trustworthiness analysis, grounded in State v. Cottier factors: Robinson’s felony conviction, the absence of oath/cross, the incentive to seek favorable treatment at sentencing, and weak corroboration.

4) “My job is justice” as non-vouching rebuttal

The Court distinguished permissible rebuttal rhetoric from improper vouching. Unlike Harris v. Fluke, where the prosecutor invoked her personal evaluation of evidence as a reason to put the case before a jury, the prosecutor in Tuopeh was responding to an accusation that the State was “selling” a theory. The comment described the prosecutor’s role and denied trickery; it did not assure the jury of any witness’s truthfulness or suggest special knowledge.

5) Expert testimony on force and causation

The Court treated Dr. Snell’s testimony as a permissible explanation of injury mechanics and causation, rather than speculation. It also held that illustrative comparisons (e.g., a fall from a second story onto a rock) were within the scope of expert explanation, consistent with State v. Fisher.

6) Sufficiency and aiding-and-abetting for depraved-mind murder

Applying the de novo sufficiency framework from State v. Peneaux, the Court emphasized video evidence of pursuit and a sustained assault on a defenseless, fallen victim, plus medical testimony that blows to the head contributed to the fatal brain injury. Even if jurors doubted which defendant delivered which exact blow, they could rationally conclude Tuopeh aided and abetted the fatal assault while acting with a depraved mind under SDCL 22-16-7 and SDCL 22-3-3.

7) Statutory self-defense immunity: clear-and-convincing rebuttal under SDCL 22-18-4.8

The circuit court found a prima facie claim because Mousseaux threw the first punch, shifting the burden to the State to overcome immunity by clear and convincing evidence. The Supreme Court agreed the State met that burden based primarily on video: Mousseaux retreated, attempted to flee, fell, and ceased to pose an imminent threat. The continued pursuit and head-directed beating constituted unreasonable deadly force, defeating immunity.

8) Notebook evidence: relevance for identification and limiting instruction

The Court acknowledged the lyrics were offensive and could imply propensity for violence, but upheld admission for identity linkage (“Ceno”), emphasizing the limiting instruction and the absence of a redaction request. It further found no prejudice given the weight of video and other evidence, relying on State v. Shelton’s presumption that jurors follow instructions.

C. Impact

1) Clarifying the “alternative counts” question in single-death homicide prosecutions

The decision reinforces a modern, procedure-focused approach: courts need not force a single verdict through alternative-counts instructions where multiple homicide theories are supported by evidence. Instead, the constitutional safeguard is implemented at judgment and sentencing—consistent with Ball v. United States and State v. Washington.

Practically, this permits prosecutors to charge and try multiple homicide theories without risking automatic instructional error, while placing responsibility on the sentencing court to avoid multiple convictions. The opinion also signals that older language suggesting alternative charging (e.g., in Wilcox v. Leapley) does not create a defendant entitlement to alternative-count submissions.

2) Sentencing-court precision after multiple guilty verdicts

Although the Court affirmed, it highlighted (via State v. Washington) the preferred remedy: rather than “vacating” a jury verdict, the judgment should state that no judgment of conviction is entered on redundant counts. This has immediate drafting consequences for judgments in cases involving overlapping counts.

3) Limits on “investigation on trial” strategies

The Court’s treatment of Robinson’s proffered brass-knuckles account suggests skepticism toward attempts to admit weakly corroborated jailhouse information under the guise of impeaching investigative quality. The ruling underscores that evidentiary relevance and hearsay safeguards will often bar such detours unless trustworthiness and a clear, non-hearsay theory are concretely established.

4) Prosecutorial rebuttal boundaries

The vouching analysis provides prosecutors a measure of leeway to rebut defense attacks on prosecutorial motives, while still preserving the core prohibition: do not imply special knowledge of truthfulness or personally certify the correctness of the State’s theory (as in Harris v. Fluke).

4. Complex Concepts Simplified

  • Alternative counts instruction: A direction telling jurors they may convict on only one of several counts (and must acquit on the rest). The Court held it is not required here; jurors can return multiple guilty verdicts if each count’s elements are proved.
  • Double jeopardy (in this context): The constitutional rule that prevents multiple convictions/punishments for the same offense (or multiple homicide convictions for a single death). The remedy is entered at judgment: the court should enter judgment on only one count.
  • Double hearsay: A statement containing another statement (e.g., detective testifies that Robinson said that Pour said X). Each layer must fit a hearsay exception, which is often difficult to establish.
  • Statement against penal interest (SDCL 19-19-804(b)(3)): An exception allowing certain self-incriminating statements by an unavailable declarant—but in criminal cases, it requires corroborating circumstances indicating trustworthiness.
  • Prosecutorial vouching: Improperly asking jurors to trust the government’s credibility assessment (or implying special knowledge). The Court found no vouching where the prosecutor responded to an accusation of “selling” a theory without certifying evidence or witnesses.
  • Depraved mind murder (SDCL 22-16-7): Second-degree murder proven by an imminently dangerous act showing a reckless disregard for human life, without premeditation.
  • Statutory self-defense immunity (SDCL 22-18-4.8): Once the defendant makes a prima facie showing of self-defense, the State must overcome immunity by clear and convincing evidence. Here, the continued pursuit and beating of a fallen victim defeated the claim.

5. Conclusion

State v. Tuopeh solidifies a key procedural rule for South Dakota criminal practice: defendants are not entitled to force the jury into an “either/or” choice between overlapping homicide counts through an alternative-counts instruction. Consistent with Ball v. United States and State v. Washington, multiple counts may be tried and multiple guilty verdicts may be returned—so long as the court avoids double jeopardy by entering judgment on only one count and making clear no additional conviction is entered on the remainder.

The opinion also reinforces trial-management principles: compulsory process does not guarantee testimony; double-hearsay jailhouse accounts require strong corroboration; rebuttal comments about prosecutorial role are not necessarily vouching; expert medical causation testimony may include explanatory illustrations; and limiting instructions can mitigate prejudice where evidence is admitted for a narrow purpose.