The killer, Brian Krebs, is a sucssesful yuppie type clean cut type guy. A fuckin' DOOSH, if you will. So, there's that. He appears to be the last guy on earth that would weild a steak knife at people over a bar tab. White as the pure driven snow to boot. No tattoos, no skinhead, no stereotype.............other than looking like your basic doosh. I've been through quite a few booze induced bar brawls and always walked far away from the booze induced run with the pack of wild dogs mentality. Chuck mentioned using metal detectors at restaurants/bars. I think that would kill that business. I would suggest someone in the same roll as an air marshall. Just a guy or girl keeping an eye out for trouble in a discreet way and nip it in the bud pre-melee.