Yeah, it's pretty damn horrific that the Police Dept. didn't even take the Synagogue's request for protection seriously. Thank God nothing happened there, and the town leadership should be thankful of that, too. There would've been political hell to pay if their negligence resulted in anyone getting harmed.
On that note, I think if there was a big police presence near the protestors and anti-protestors, things wouldn't have escalated the way it did. I mean, the police SHOULD make themselves known once Nazis are on the march (and in addition to Antifa, that's one hell of a toxic brew).