Road or not, you don't plow over people and take off. If it was a true accident (clearly it wasn't since there was no attempt to turn with the road) then the driver would have stuck around. This was clearly intentional and probably wouldn't have mattered if they were standing in the street or a driveway, that driver was aiming for them.
I don't know. If it was premeditated, that's different. But there are areas in the US where hitting someone can have SEVERE consequences if you stop to render aid...