Conflicting Provocation-Manslaughter Instructions and Verdict Forms Constitute Fundamental, Prejudicial Error

I. Introduction

In STATE OF ARIZONA v. RICKY ALONZO HIPPENSTEEL (Ariz. June 1, 2026), the Arizona Supreme Court addressed whether a trial court’s unobjected-to instructional and verdict-form errors—mischaracterizing provocation manslaughter under A.R.S. § 13-1103(A)(2) as a “lesser included” offense and directing the jury to consider it only after acquitting (or deadlocking) on second degree murder—amounted to fundamental, prejudicial error requiring a new trial.

The parties were the State of Arizona (Appellee) and Ricky Alonzo Hippensteel (Appellant). Hippensteel was tried for first degree murder and related offenses after Derek Joseph Odle was stabbed to death during a confrontation in June 2021. Hippensteel claimed self-defense and, alternatively, that the killing occurred in a sudden quarrel/heat of passion.

The key issues were (1) whether the jury received legally incompatible directions about how to evaluate provocation manslaughter in relation to second degree murder, (2) whether those errors were “fundamental” under State v. Escalante, and (3) whether they prejudiced the verdict.

II. Summary of the Opinion

The Court held that the trial court committed error by (a) giving a State v. LeBlanc “reasonable efforts” sequential instruction treating provocation manslaughter as a lesser included offense and (b) providing a verdict form that reinforced this incorrect sequencing and failed to provide a mechanism for the jury to return a distinct verdict on provocation manslaughter after finding the elements of second degree murder.

Applying State v. Escalante fundamental-error review (because there was no objection), the Court concluded:

  • The instructional/verdict-form errors were fundamental because they deprived Hippensteel of a right essential to his defense: meaningful jury consideration of the statutory “less serious degree” of homicide (provocation manslaughter) after finding the elements of second degree murder.
  • The errors were prejudicial because a properly instructed reasonable jury could have “plausibly and intelligently” found provocation manslaughter on this record.

The Court vacated the court of appeals’ opinion, reversed the second degree murder conviction, and remanded for a new trial on the homicide charge; it affirmed the remaining convictions and sentences.

III. Analysis

A. Precedents Cited

  • State v. Escalante, 245 Ariz. 135 (2018)
    The governing framework for unobjected-to error. The Court applied Escalante’s two-step structure: (1) determine error; (2) determine whether it is fundamental under one of three prongs; and if under prongs one or two, require a separate showing of prejudice. Escalante’s prejudice standard—whether a reasonable jury could have “plausibly and intelligently” reached a different outcome “without imaginative guesswork”—drove the Court’s conclusion that the misinstruction mattered.
  • State v. Lua, 237 Ariz. 301 (2015)
    The central doctrinal anchor. Lua clarifies that provocation manslaughter is not a lesser included offense of second degree murder because it adds an additional element (adequate provocation). It is instead a less serious homicide “degree” that becomes relevant only after the jury finds the elements of second degree murder, at which point the jury must decide whether the killing occurred upon a sudden quarrel/heat of passion from adequate provocation. Lua supplied the correct instruction format and exposed why a LeBlanc sequencing instruction is structurally incompatible in this context.
  • State v. LeBlanc, 186 Ariz. 437 (1996)
    LeBlanc’s “reasonable efforts” instruction is designed for true lesser included offenses and permits deliberation on a lesser offense only after acquittal or inability to agree on the greater charge. The Court held that using this framework for provocation manslaughter is erroneous because provocation manslaughter presupposes the elements of second degree murder and cannot logically be reached if the jury must first acquit of second degree murder.
  • State v. Valenzuela, 194 Ariz. 404 (1999)
    The Court relied on Valenzuela for the principle that depriving the jury of a meaningful opportunity to return a less serious verdict supported by the evidence can amount to fundamental error affecting an essential defense right. Although Valenzuela involved a missing lesser-included instruction (rather than conflicting instructions plus a defective verdict form), the majority treated the functional impact as comparable: the jury’s ability to give legal effect to a less serious theory was blocked.
  • Mullaney v. Wilbur, 421 U.S. 684 (1975)
    Cited to illustrate the due-process dimension when a defendant is convicted of a more serious homicide despite evidence that could support a less serious offense. The Court used Mullaney to underscore that “meaningful consideration” of the mitigating homicide grade can implicate constitutional fairness, even when the precise burden allocation was left unresolved for remand.
  • Francis v. Franklin, 471 U.S. 307 (1985)
    Used not for its burden-shifting holding, but for the reviewing-court problem created by irreconcilable instructions: when a jury is given two conflicting directives that cannot both be followed, an appellate court cannot reliably assume which was applied. The majority invoked Francis to overcome the ordinary presumption that jurors follow instructions.
  • State v. Rushing, 573 P.3d 72 (Ariz. 2025)
    Cited for the general presumption that juries follow instructions. The majority acknowledged the presumption but held it was overcome here by direct conflict between the Lua and LeBlanc frameworks and by a verdict form that instructed jurors to stop after a second degree murder conviction.
  • State v. Garcia, 102 Ariz. 468 (1967)
    Supported the requirement that when courts submit verdict forms, they should provide a form for every verdict that may be returned. The absence of a distinct option for provocation manslaughter after second degree murder was found to be a serious defect.
  • State v. Hunter, 142 Ariz. 88 (1984) and State v. Denny, 119 Ariz. 131 (1984)
    Cited to explain the purpose of jury instructions—highlighting that counsel need not recite statutory elements because the instructions “flag” essential concepts for jurors.
  • State v. Murray, 250 Ariz. 543 (2021)
    Cited as an example of “essential right” deprivation in the Escalante sense—where trial error undermines constitutional safeguards. It reinforced the majority’s view that errors impairing the jury’s proper application of the reasonable doubt standard can be fundamental.
  • State v. Harwood, 110 Ariz. 375 (1974) and People v. Danielly, 202 P.2d 18 (1949)
    Used to illustrate the “reasonable person” aspect of heat of passion and how provocation is assessed under an objective standard.
  • State v. Knoten, 555 S.E.2d 391 (S.C. 2001) and State v. Craig, 33 S.W.3d 597 (Mo. App. 2000)
    Cited as persuasive authority suggesting that a “heated encounter” involving a knife can constitute evidence of adequate provocation, supporting the majority’s prejudice conclusion.

B. Legal Reasoning

1. Identifying the error: Lua versus LeBlanc as incompatible frameworks

The Court began with the statutory structure: second degree murder is defined by A.R.S. § 13-1104(A)(1)-(3), while provocation manslaughter (A.R.S. § 13-1103(A)(2)) is second degree murder committed “on a sudden quarrel or heat of passion resulting from adequate provocation by the victim.” Because provocation manslaughter adds an element, State v. Lua deems it a “less serious degree” offense rather than a lesser included offense.

That classification is not academic; it dictates the jury’s path. Under Lua, once the jury finds the elements of second degree murder, it must then determine whether adequate provocation reduces the conviction to manslaughter. A LeBlanc instruction incorrectly reverses that logic by telling jurors to consider manslaughter only after acquitting (or deadlocking) on second degree murder. Thus, the jury is given two incompatible legal maps.

2. Why the error was fundamental: loss of meaningful consideration of a less serious statutory offense

Under State v. Escalante, the Court found fundamental error under prong two (“took from him a right essential to his defense”). Although provocation manslaughter is not a “defense” in the classic justification/excuse sense, the Court treated the right as both statutory (the entitlement to correct application of § 13-1103(A)(2) as a less serious degree) and constitutional (due process concerns when evidence supports a less serious homicide grade, citing Mullaney v. Wilbur).

Critically, the majority framed the harm as functional: the Lua path gives jurors a legally valid route to reduce culpability after finding second degree murder; the LeBlanc-plus-verdict-form structure blocked that route by telling jurors (a) they “may” consider manslaughter only after rejecting second degree murder and (b) not to complete manslaughter if they found second degree murder. That combination, in the majority’s view, deprived Hippensteel of a meaningful opportunity for the jury to adopt the less serious grade supported by some evidence.

3. Prejudice: whether a reasonable jury could have returned provocation manslaughter

Applying Escalante’s prejudice standard, the Court asked whether a properly instructed reasonable jury could “plausibly and intelligently” find provocation manslaughter. The majority focused on evidence that could support adequate provocation: Hippensteel’s testimony that Odle raised a knife, the hand injury consistent with blocking, evidence that “we all have [knives],” and toxicology evidence describing methamphetamine levels “capable of causing hallucinations, aggressive behavior[,] and irrational reactions.” The Court accepted that a jury could reject self-defense (deadly force not immediately necessary) while still finding adequate provocation sufficient to deprive a reasonable person of self-control.

The State argued that the jury necessarily rejected provocation manslaughter because it received a correct Lua instruction embedded within the second degree murder instruction. The majority rejected that reliance on the usual presumption that jurors follow instructions, reasoning that jurors were also told they must consider all instructions, and the Lua and LeBlanc directions could not both be followed. Invoking Francis v. Franklin, the Court held that irreconcilable instructions defeat confidence about which directive controlled deliberations, particularly when the verdict form instructed jurors to stop after a second degree murder conviction and provided no distinct mechanism to enter a provocation manslaughter verdict after finding second degree murder.

4. The dissent’s competing reconstruction (and the majority’s response)

Justice Montgomery agreed error occurred but would have affirmed. The dissent emphasized (a) the defense’s primary reliance on self-defense rather than provocation manslaughter, (b) the existence of the Lua instruction, and (c) record indicia (juror questions, witness credibility, acquittal on aggravated assault) suggesting the jury credited Abrigo and rejected the “knife provocation” theory. The majority responded that the correct inquiry under Escalante is not to predict what this jury would have done, but whether a reasonable jury could have reached a different verdict if properly instructed—an inquiry the majority said the dissent effectively transformed into evidence-weighing.

C. Impact

  • Trial courts must not use LeBlanc sequencing for provocation manslaughter under A.R.S. § 13-1103(A)(2).
    This decision reinforces Lua and treats deviations—especially when paired with verdict forms that force sequential “lesser included” logic—as reversible under fundamental-error review when prejudicial.
  • Verdict forms must allow a distinct provocation manslaughter verdict after second degree murder elements are found.
    The Court’s reliance on State v. Garcia signals that form design is substantive when it channels deliberations and can prevent jurors from expressing the verdict the law requires them to consider.
  • Conflicting instructions can overcome the presumption that juries follow the law.
    By using Francis v. Franklin to address irreconcilable directions, the Court strengthens appellate skepticism where jurors receive mutually exclusive pathways on a dispositive issue.
  • Future litigation likely on burden of proof for provocation manslaughter.
    The Court expressly declined to resolve which party bears the burden of proving provocation manslaughter, leaving trial courts to decide on remand “with the benefit of full briefing from all interested parties.” That open question is poised to generate further appellate clarification and potential RAJI revisions.
  • Practical effect: heightened scrutiny of RAJI use when the RAJI package mixes doctrines.
    The case is a caution that “standard” instructions can produce nonstandard error when combined across doctrinal categories (lesser included vs. lesser degree). Courts and counsel must ensure the instruction set is internally coherent and matches the offense structure.

IV. Complex Concepts Simplified

  • Lesser included offense vs. lesser degree offense
    A lesser included offense contains no elements beyond the greater offense; if you commit the greater, you necessarily commit the lesser. Provocation manslaughter adds “adequate provocation,” so it is not lesser included of second degree murder; it is a less serious degree of homicide that becomes relevant only after second degree murder is otherwise established.
  • Lua instruction
    A direction that: once second degree murder elements are proven, the jury must decide whether adequate provocation (sudden quarrel/heat of passion) reduces the conviction to manslaughter.
  • LeBlanc “reasonable efforts” instruction
    A sequencing rule for true lesser included offenses: consider the lesser only after acquitting (or deadlocking) on the greater. Applied to provocation manslaughter, it improperly prevents jurors from reaching manslaughter when they find second degree murder.
  • Fundamental error (Escalante)
    For unobjected-to mistakes, an appellant must show error plus either (1) it went to the case’s foundation, (2) it took an essential defense right, or (3) it was so egregious no fair trial was possible. If prongs (1) or (2) apply, the appellant must also show prejudice—i.e., the error mattered to what a reasonable jury could have decided.
  • Adequate provocation
    Defined by A.R.S. § 13-1101(4) as conduct/circumstances sufficient to deprive a reasonable person of self-control—an objective test. It is not enough that the defendant was subjectively angry; the provocation must be adequate under a reasonable-person standard.

V. Conclusion

The Arizona Supreme Court’s decision establishes (and reinforces) a clear operational rule: when provocation manslaughter under A.R.S. § 13-1103(A)(2) is at issue, courts must use the State v. Lua framework—not State v. LeBlanc sequencing—and must supply verdict forms that allow jurors to return a distinct provocation manslaughter verdict after finding the elements of second degree murder. Where instructions and verdict forms instead steer jurors away from that legally required consideration, the error can be fundamental and prejudicial, warranting reversal even without an objection at trial.