Arrest them and their parents.
Here's the update:
Vandals charged in shrine desecration
WEST BEND, WI (AP) -- Two cousins have been charged with felony vandalism for desecrating one of Wisconsin's most popular religious shrines earlier this week, when the date was 6-6-06.
Tyler Groth, 21, of Neosho and David Groth, 17, of Hartford were charged Friday with criminal damage to religious property in Washington County.
The elder cousin told authorities he had no remorse for his actions, which authorities said includes marking "Happy Birthday Satan" and "666" at Holy Hill National Shrine of Mary, Help of Christians, said Washington County Sheriff Brian Rahn.
Rahn said that Tyler Groth admitted to taking part in the vandalism but said he wasn't sorry. Rahn said the man told him, "It was just something I did. I just wanted to have some fun."
David Groth refused to speak to investigators, Rahn said. He was arrested on Friday after deputies followed up on a lead to locate the 17-year-old at a home in the Town of Richfield.
Rahn said the teen was at the home of an acquaintance, who let authorities in and may not have known the boy was there.
Tyler Groth was arrested at the shrine on Wednesday when he, his cousin and several others were stopped by authorities. Rahn said the group returned to the shrine apparently to admire their work. The other people in the car were not arrested and released.
The department has said vandals hit the shrine sometime between 8 p.m Tuesday and 5:45 a.m. Wednesday. They attacked the monastery, spray painting in red "Hell on Earth" on the front door along with a pitchfork and "666" on its walls, Lt. Steve Gonwa said. Some believe the numbers "666" refer to the "Mark of the Beast," a person or entity controlled by the Antichrist.
Holy Hill, a U.S. and state registered landmark, is a shrine-church-monastery complex about 25 miles northwest of Milwaukee.
Tyler Groth, who has no prior record, could be released from jail on a signature bond. But David Groth, who has a juvenile record and pending theft charges in other cases, must post $1,000 bail.
They face more than three years in prison and a $10,000 fine.
The two were expected back in court on Wednesday.