In a significant ruling, the Oregon Court of Appeals has affirmed a lower court's decision denying post-conviction relief to Adam Steven Lyon. The court ruled that Lyon did not prove his claim that a nonunanimous jury verdict in his case was unconstitutional. This decision affects Lyon, who was found guilty except for insanity (GEI) in a case involving aggravated harassment against a public safety officer.
The case, Lyon v. Matteucci, was filed under docket number A184748 and was decided on October 14, 2026. Lyon's appeal stemmed from a conviction where he admitted to throwing a cup containing urine and old food at a sheriff's deputy while incarcerated. The court's ruling is significant as it addresses the implications of nonunanimous jury verdicts in Oregon, particularly in cases involving affirmative defenses like GEI.
Background
Adam Lyon was charged with aggravated harassment after he threw a cup of his urine and old food at a deputy while in the Washington County Jail. Under Oregon law, aggravated harassment occurs when a person knowingly propels bodily fluids at a public safety officer acting in their official capacity. Lyon's defense centered on the argument that he was guilty except for insanity, meaning he suffered from a mental disease that impaired his ability to appreciate the criminality of his actions.
Prior to trial, both the state and Lyon's defense team evaluated his mental state, concluding that he met the criteria for the GEI defense. Despite this, the state proceeded with the trial, seeking to prove that Lyon acted with the necessary intent to be found guilty. Lyon's trial strategy involved conceding his guilt for the act itself while arguing for the GEI verdict, which ultimately resulted in a jury decision of 11-1 in favor of GEI.
The Ruling
The Court of Appeals, led by Judge Hellman, affirmed the post-conviction court's decision. The court found that Lyon did not establish that the jury's verdict was nonunanimous regarding his guilt for aggravated harassment. The opinion stated, "The record shows the jury was split only as to petitioner’s affirmative defense." This indicates that the dissenting juror likely agreed with the guilty verdict but disagreed on the GEI defense.
The court also noted that Lyon's trial counsel had strategically conceded guilt, stating, "I’m asking you to find him guilty except for insanity." This concession played a crucial role in the court's decision, as it demonstrated that Lyon was not contesting the act of throwing the cup but rather his mental state at the time of the offense.
Impact
This ruling has broader implications for similar cases in Oregon, particularly those involving nonunanimous verdicts and affirmative defenses. The court clarified that a guilty except for insanity verdict is not the same as an acquittal, meaning that nonunanimous verdicts do not automatically violate the Sixth Amendment. The decision reinforces the idea that juries must first determine guilt before considering defenses like GEI.
The ruling may also deter future claims of nonunanimous verdicts in cases where defendants have strategically conceded guilt as part of their defense. Lyon's case illustrates the complexities involved in navigating affirmative defenses and the importance of trial strategy in shaping the outcome of such cases.
What's Next
Details were not available in the court filing regarding whether Lyon plans to appeal this ruling further. However, the court's decision sets a precedent that may influence similar cases in the future, particularly those involving the intersection of mental health defenses and jury verdicts.