Like fireflyNah...
It would be better if we had a machine to re-alive some1.
Put the driver that caused this into a Kia and let a robot car slam into it so it burst into flame and he gets to experience death by fire.
Then use the machine to re-alive him and do it again. He killed 3 people so at least 3 times let him experience it.
jedi has more thoughts on this but it would not be civil.