We all know what really motivated them to do this damage
Reporting to the police the damage and giving them a possible motive for what happened is a proper thing to do, and then let them handle it at your insistence.
Was there any offer of cleaning up the mess and financial restitution.....probably not, which indicates their disdain for you?
As regards the action taken by the elders, well they will only act in harmony with the public notoriety of the incident - if no action is taken by the victims probably nothing will be done to the perpetrators and they will be smugly content to continue in life with little damage to themselves within the confines of their spiritual city breeding children who know they can get away with what father did as a middle age immature hypocrite. The WTS is only interested in minimising publicity not whether some one is hurt by their buffoons.