Whether the trial court correctly instructed the jury on causation for OWI/OWVI causing death.
Holding
No. The instructions materially misstated proximate-cause law by effectively requiring a superseding intervening cause to be the sole cause of Keiser’s death.
Reasoning
Michigan criminal causation has two distinct components. First, factual causation asks whether the result would have occurred but for the defendant’s conduct. Second, proximate causation asks whether the result was a direct and natural consequence of that conduct, rather than a result too remote or unnatural for criminal liability to attach.
Rideout’s intoxicated driving was a factual cause of Keiser’s death: but for the initial collision, the disabled vehicle would not have been in the road and the later fatal collision would not have occurred. Factual causation alone, however, does not establish criminal liability.
An intervening act supersedes the defendant’s conduct, and breaks the causal chain, when it is not reasonably foreseeable under an objective standard. A superseding cause need not be the only cause of the injury; it may cut off legal responsibility even though the defendant’s conduct remains a factual cause.
The trial court focused extensively on factual causation and told jurors that another person’s conduct could cut off Rideout’s liability only if it was the only cause of Keiser’s death. That instruction was incorrect and did not adequately explain proximate cause or superseding intervening causes. Because causation was an essential element, the erroneous instruction required reversal.