In the end his son got awarded. And learnt to stand up for him self. Seems double win on his side.
The principal is in a position of power which cannot be held accountable within the confines of the system. Such positions are ripe for abuse and in fact attract people who want to abuse power.
As a society, we should design rule systems in such a way that each position can be held accountable.
Call the local media, father & son duo to be arrested from sidewalk in front of school official's home for camping in protest of his son's expulsion after protesting a wrongful suspension. (Repeat for the bully's home, then back to the principal's, then run for the school board and when you win make that principal's life hell in that district. Bury a kilo of cocaine in her back yard and phone a tip in. Etc.)