People v. Morgan — Michigan Supreme Court reverses exclusion of victim’s BAC evidence in moving-violation-causing-death prosecution

Case
People of the State of Michigan v. Michael Marc Morgan
Court
Michigan Supreme Court
Date Decided
June 24, 2026
Docket No.
167492
Topics
Evidence, Proximate Causation, Traffic Crimes, Victim Intoxication

Background

Michael Marc Morgan was charged with moving violation causing death under MCL 257.601d(1) after he executed a U-turn on Kensington Road in Brighton Township, Michigan, and his vehicle was struck by a northbound motorcycle operated by Donald Douglas Arnold. Arnold died from his injuries approximately 75 minutes after the collision. Eyewitness testimony described Arnold as accelerating aggressively from a traffic light shortly before the crash. A post-mortem toxicology report showed Arnold’s BAC was 0.059 g/dL at the time of testing; Morgan’s proposed expert, using retrograde extrapolation, estimated the BAC at the moment of impact may have been as high as 0.071 to 0.081 g/dL. The parties’ accident reconstructionists disputed Arnold’s speed, with Morgan’s expert estimating he may have reached 75 mph and the prosecution’s expert placing the collision-time speed between 35 and 38 mph.

At a pretrial hearing, the 53rd District Court admitted evidence of Arnold’s possible speed — potentially 20 mph over the posted 55 mph limit — but excluded evidence of his BAC. The circuit court denied interlocutory leave to appeal. The Court of Appeals affirmed in a split decision, reading People v Feezel, 486 Mich 184 (2010), to require a threshold showing that a victim’s conduct was already grossly negligent before intoxication evidence becomes admissible. Because the court found Arnold’s speeding did not independently rise to that level, it held the district court did not abuse its discretion. Judge Markey dissented, arguing that speeding and possible intoxication must be assessed together, not in isolation. The Michigan Supreme Court granted oral argument on the application.

The Court’s Holding

In a 6-1 opinion authored by Justice Hood, the Supreme Court reversed. The Court held that the district court abused its discretion by excluding the BAC evidence under both MRE 401 (relevance) and MRE 403 (unfair prejudice). On relevance, the Court reaffirmed Feezel‘s low threshold — evidence need only have any tendency to make a fact of consequence more or less probable — and clarified that Feezel does not require courts to analyze a victim’s intoxication in isolation from the victim’s other conduct. Here, Arnold’s alleged speeding and rapid acceleration were already before the jury; his possible intoxication was probative of whether that combination of behaviors constituted gross negligence capable of breaking the causal chain between Morgan’s U-turn and Arnold’s death. Admitting the speeding evidence while excluding the BAC evidence without a clear rationale was internally inconsistent and reflected the district court’s error in siloing the two categories of evidence rather than assessing the totality of circumstances.

On MRE 403, the Court held that the risk of unfair prejudice was low relative to the evidence’s probative value. While the BAC was below the legal limit for driving and the conduct was less extreme than in Feezel, the combination of possible intoxication, speed well above the limit, and rapid acceleration near an intersection during rush hour could be critical — not merely marginal — to the jury’s assessment of proximate cause. The Court reversed the Court of Appeals, vacated the district court’s exclusion order, and remanded for further proceedings. Justice Zahra dissented, concluding the conduct, even combined with the BAC, established at most ordinary negligence, rendering the evidence minimally probative but highly prejudicial, and that the district court’s ruling was within the principled range of outcomes and therefore not an abuse of discretion.

Key Takeaways

  • Feezel does not create a separate threshold showing of gross negligence that must be satisfied before victim-intoxication evidence may be admitted; the inquiry is whether the BAC evidence, considered together with the victim’s other conduct, has any tendency to make gross negligence more or less probable.
  • Courts must assess victim intoxication and victim conduct holistically, not in isolation — each piece of evidence illuminates the other when determining whether the victim’s behavior could constitute a superseding cause breaking the causal chain.
  • A district court that admits evidence of a victim’s speeding has implicitly recognized proximate cause as a live issue; excluding the victim’s BAC without a clear rationale while retaining the speeding evidence is an internally inconsistent ruling that constitutes an abuse of discretion.
  • A victim’s BAC below the legal per se limit is not automatically irrelevant; relevance turns on the totality of the victim’s conduct, not on whether the BAC crossed a particular threshold.

Why It Matters

This decision clarifies the evidentiary framework governing victim-conduct evidence in Michigan’s moving-violation-causing-death prosecutions — a framework with broad application to any Vehicle Code offense where the prosecution must prove proximate causation. Defense attorneys in traffic-homicide cases now have clearer authority to seek admission of victim BAC evidence whenever the victim’s other conduct independently raises a proximate-cause dispute, even if the intoxication level was below the legal limit. Conversely, prosecutors must be prepared to meet arguments that a victim’s combined behavior — speed, impairment, and maneuvering — constituted a superseding cause.

More broadly, the Court’s insistence that trial courts assess evidence holistically rather than element-by-element reinforces a principle applicable across Michigan evidentiary practice: relevance is a function of context, and siloing related pieces of evidence produces legally untenable results. The decision also signals that Feezel‘s general caution against admitting intoxication evidence too freely is a policy principle, not a threshold rule that immunizes certain conduct from scrutiny before a jury.

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