This is pointless...
Punishing the old man is not going to keep this type of accident from happening again and again and again.
All that punishment would really accomplish is to make a bad situation worse... and for the benefit of who? You?
Who cares what you and I think about the situation?
Accidents are always preventable... but we are human and that is all there is to it.
We are always quick to point our finger at someone else who unintentionally messed up hoping for some sort of bad karma to befall them... until its our turn on the other end.
btw... My perspective on intentional criminal behaviour is quite different.