Sans evidence, anyway he can be charged with being a thick prick in a built up area.yeah, even if the pics are old and he doesn't have the business anymore he's, at the very least, getting a "knock and talk" from the vice unit ( at least that's how we do business here). they have a lot of evidence to go off of if he denies having the operation considering they can ID him in the pics with the weed. even if criminal charges don't come out of this he'll still get the message and, of course, my reply to his initial message will be very detailed and then i'll try and have his myspace shut down for making threats.
If you send him a card, make sure you sign it "Officer" Faggot.