Why do you all think the repercussions of this accident should fall squarely on this other person that is MIA? Technically, the one that actually/physically caused the accident has been arrested, right? The person that is MIA didn't run anyone off the road, hit anyone, or really do anything to cause the wreck other than be the one the out-of-control car was trying to outrun, right? To me, it doesn't sound like they really caused the accident.
What happened isn't any different than if a wreck happened at a track where the car in the other lane didn't cause the wrecked car to get out of control, hit the wall, somersault over the wall and land on the first 3 rows of spectators killing a few people. No one would claim that other car was guilty of anything unless they had swapped lanes or done something to cause the wrecked car to get out of control. Regardless of where this took place, the person who caused the mess isn't any different. No?
To me, I can see the MIA driver being able to get a ticket for racing but not manslaughter nor murder.