Either way this is why said these kids should be arrested, all of them. Put them in a tent city like Sheriff Joe had if needed. Feed them bologna and milk three times a day, they will learn quickly not to do that again.
This is getting out of hand. Next time it happens police need to arrest all the yutz involved even if means they need to carter a city bus or school bus to haul them downtown. Even set up a "Sheriff Joe Tent City" to house them if parents can't or won't make bail.