My friend's son -4th grader- Tom is a naughty boy. He might have annoyed his classmate A. But the school has never sent any letter or note saying the two boys have conflicts.
Last Friday afternoon, after Tom got off from the school bus and on his way home (about 2 minutes walk). A's dad hid behind an electrical box, when he saw Tom, he came out and push Tom on the ground and start to hit Tom. Then a Canadian drove by and start to horn A's dad to signal him to stop. But he kept on doing it. Then the driver stopped his car and came out. Then A's dad stopped. The witness asked "Why are you doing this?". A's dad said "It's ok" and walked away. The witness asked Tom: "Is he your dad", Tom said "He is my enemy's dad". The witness gave his business card to Tom and told him to tell his parents about what happened and he can be the witness.
So my friend called the witness to get the details of what he saw then called the police.
Then on this Monday, when Tom was riding bike in the nearby park with his friends. A's dad came again. Tom wanted to run away, but needed to put his helmet on. By the time he put his helmet on, A's dad is already close to him and shouted to Tom:"If you dare to do anything to my son, I will kill you!" Other parents and kids heard what he said and called my friend. So my friend called the police again.
Police gave my friend two options:
1. You can sue A's dad
2. Don't sue A's dad, but police will talk to A's Dad and tell him that he is doing illegal things.
A and Tom are neighbour. A's family never talked to my friends about what Tom did anything bad to his son.
Should my friend sue A's dad? My friend has a little concern, if she sue A's Dad, he might do something even worse to her family. Anyone knew any similar case?
Any suggestions?
Thanks in advance!