Background
Michael Marc Morgan was charged with moving violation causing death under MCL 257.601d(1) after his vehicle struck and fatally injured motorcyclist Donald Douglas Arnold in Brighton Township, Michigan. The alleged underlying violation was an unlawful U-turn Morgan made into the northbound lane where Arnold was traveling. Eyewitness accounts described Arnold as having “taken off like a bat” after a green light, with a disputed top speed ranging from 35 mph to as high as 75 mph in a 55-mph zone. Arnold died approximately 75 minutes after the collision. A post-mortem toxicology test showed a BAC of .059 g/dL at time of death; Morgan’s proposed expert opined that Arnold’s BAC at the moment of impact could have been as high as 0.081 g/dL using retrograde extrapolation.
At a pretrial hearing, Morgan moved to admit both the speed evidence and the BAC evidence to contest the proximate causation element of the charge—arguing that Arnold’s gross negligence could constitute a superseding cause that broke the causal chain. The district court admitted the speed evidence but excluded the BAC evidence. The Court of Appeals affirmed 2-1, reading People v. Feezel, 486 Mich 184 (2010), to require a preliminary showing of gross negligence based on conduct alone before any evidence of a victim’s intoxication becomes admissible. Because speeding by up to 20 mph was not sufficiently egregious to make that preliminary showing, the majority held the BAC evidence properly excluded. Judge Markey dissented, arguing the court should not evaluate speed and intoxication in isolation from each other.
The Court’s Holding
The Michigan Supreme Court reversed 6-1, vacated the district court’s exclusion order, and remanded for further proceedings. Writing for the majority, Justice Hood held that the district court abused its discretion by excluding the BAC evidence under both MRE 401 and MRE 403. On relevance, the Court reaffirmed that under Feezel evidence of a victim’s BAC need only have “any tendency” to make gross negligence more or less probable—a minimal threshold. Critically, the Court rejected the lower courts’ approach of analyzing the intoxication evidence in isolation from the admitted speed evidence: because the district court had already determined that testimony about Arnold’s rapid acceleration and elevated speed was relevant to causation, that conduct opened the door to considering what role possible intoxication played in it. The two categories of evidence must be assessed together, not separately.
On MRE 403, the Court held that the risk of unfair prejudice was low relative to the evidence’s probative value. Arnold’s possible speeding, rapid acceleration from a green light, and possible alcohol impairment collectively bore directly on the disputed question of whether his conduct amounted to gross negligence or intentional misconduct sufficient to sever the causal link between Morgan’s U-turn and Arnold’s death. The Court also faulted the district court for an internal inconsistency: it admitted the speed evidence—which could only be relevant to causation through the lens of gross negligence—while excluding the intoxication evidence without a clear rationale, effectively treating similar evidence asymmetrically. The Court clarified that Feezel set no floor for the level of intoxication required, no floor for the type of conduct that opens the door, and did not demand isolation of each factor.
Key Takeaways
- Under Feezel, a victim’s BAC evidence is not assessed in a vacuum; it must be evaluated together with any other admissible conduct evidence that is already before the court.
- When a trial court admits evidence of a victim’s speeding as bearing on proximate cause, it implicitly places gross negligence at issue—creating an opening for related intoxication evidence.
- The relevance threshold for victim BAC evidence remains deliberately low: any tendency to make gross negligence more or less probable satisfies MRE 401, regardless of the specific BAC level.
- Excluding intoxication evidence while admitting speeding evidence—without a clear rationale for the asymmetry—can itself constitute an abuse of discretion.
- Justice Zahra dissented, arguing the combined evidence showed at best ordinary negligence and that the district court’s ruling was within the principled range of discretion.
Why It Matters
This decision clarifies how Michigan trial courts must handle victim-conduct evidence in prosecutions under the moving-violation-causing-death statute. By rejecting a siloed approach and requiring courts to consider the totality of a victim’s possible conduct—speed, acceleration, and intoxication together—the Court gives defendants in fatal-collision cases a stronger basis to contest proximate causation. Defense counsel should now be on firmer ground seeking to admit BAC evidence whenever speed or erratic driving evidence is already in play, even if the intoxication level is below the legal limit.
More broadly, the opinion refines the Feezel framework that Michigan courts have applied for over a decade. It confirms that Feezel established no conduct-severity floor and no BAC-level floor—only a contextual, totality-of-the-circumstances inquiry. Prosecutors and defense attorneys alike will need to account for this holistic analysis when evaluating what victim-conduct evidence to contest or pursue in vehicle-homicide and serious-injury cases going forward.