Exactly this. Kid? At 22? I left home at 17, and knew full well when I was doing wrong before that. He is an adult, and the sooner he is treated as one, the soo

Exactly this. Kid? At 22? I left home at 17, and knew full well when I was doing wrong before that. He is an adult, and the sooner he is treated as one, the sooner he might straighten out. Definitely tell the parents. If the parents come back with, "Mind your own @$!%ng business!" then I would inform the police.