What Blast posted is more-or-less what I was thinking (stop that, dude, you're freaking me out:-). I don't buy the prelude-to-mayhem thing; it doesn't fit.

This has got to be some sort of dumb-ass grievance/revenge or criminal activity. And given the specific, precise nature the vandalism, I'll bet there's a short list that's getting shorter by the minute.

The only part that really interested me was the amateurs bailing out the pro's. Guess it's my contrary nature. I really need to get back into the ham thing.