Here in the UK the Police tend not to use the term RTA (Road Traffic Accident) anymore, but use RTC (Road Traffic Collision). In the vast majority of cases, it is not an "accident" but someone is to blame, they caused the accident even though they never intended to do so. It could be a case of "dangerous driving" or "driving without due care and attention".
I am quite sure that in the US if there is a collision and someone dies, is injured or there are no casualties, the police will investigate. The idea that this lady did not intend to cause the death of a young motorcyclist does not relieve her of any responsibility.
Even if she is jailed, at least she will be released, this young man is gone forever due to her actions.
George