Let the Mafia handle this. Government officials and church leaders are apparently unable to.
That reminds of me of when someone wrote graffiti on the side of the Italian church in town. It was on a back wall of one of the church buildings, not even the church.
The next day the responsible kids were out there in mid day cleaning that off. The parents got a call from one of their “friends.”
The parents were scared to death that the kids were going to get the crapped kicked out of them.