Could be. So far I’ve seen no reports of how she actually got injured. If it’s as you suggest, a strong defense would be that the driver felt himself in reasonable fear of death or great bodily harm and backed up as fast as he could to escape. At that point hard to see any crime.
There is a video of a girl being the first of the several that climbs on the right trunk after the car has ceased forward motion. She is also the first to strike the rear window putting a sizable hole in it with what sure looks like a baseball bat. It sure looks like she gets pinned between his car and that black trucked the car goes into reverse. From what I have read she is the fatality.