Not the Charm City itself, mind you. Jews are, of course, blamed for the police violence which has led to the latest batch of protests. The link is that Baltimore County (not City -- they're separate jurisdictions) police officers are offered training in Krav Maga, an Israeli-developed martial arts form. If you've watched a movie fight seen and wondered why it didn't end in 15 seconds with a joint break, Krav Maga is for you -- it emphasizes ending physical confrontations quickly by immediately incapacitating the opposition. For this reason, it is purely a "functional" fighting style (it isn't designed for aesthetics or competition, for example). Police and military units sometimes train in Krav Maga because it offers effective means of dispatching armed violent attackers (many Krav Maga scenarios involve, for example, an unarmed person being attacked with a knife).
In any event, the Nation of Islam saw the "Jewish martial art --> political jurisdiction bordering Baltimore City" link and immediately decided that the whole thing was a Mossad/Shin Bet plot. Needless to say, Max Blumenthal jumped all over it too.
Somehow, one gets the feeling that if a police department was trained in Tae Kwon Do, folks wouldn't immediately rush to blame acts of violence on the Koreans. But that's all part of what makes being a Jew so special.