Yeah. The biggest cowards are the most likely to attack when they're confident and run when there's consequences.
The evidence has to be undeniable or those same cowards will pull the "promising young man" defense and cry about being the "real victim" etc. etc.
The families are facing hefty stuff. There's whole new chapters in the CRC parenting manual [and test] about how to curb bullying behaviour in those new to social interaction.
The biggest hill to conquer is getting those who did wrong to acknowledge that they did it, and that it was wrong.