Sad thing is that they'll probably only get probation or a slap on the hand.
What needs to be done with them is that someone should teach them a valuable lesson. Maybe like the owners of the boats that they vandalized, takin them in a room and whipping them with a cane till their ass bleeds and they can't sit for a month or 2.
We're just too damn leinient on these kind of crimes. No one ever learns their lesson unless they get the crap beat out of em.