Under Minnesota law (Minn. Stat. § 609.066), peace officers may use deadly force only if an objectively reasonable officer believes—based on the totality of circumstances, without hindsight—that it's necessary to protect themselves or others from imminent death or great bodily harm, and the threat must be addressed with deadly force without unreasonable delay. Based on available facts, Ross's use of deadly force has arguable justification under Minnesota law due to the specific injury and perceived vehicular threat in a tense, rapid encounter. REMEMBER that the Officer did not have the ability to slow down and replay the video of her actions before making his decision to fire and he had no way of knowing her intent other than what he perceived. Based on the evidence available, I'm leaning towards a tragic but justified use of deadly force.