Yes, there was violence in Baltimore but Black Westchester makes the point of where was the coverage of the peaceful protest.
Malcolm Gladwell’s David and Goliath:
[L]egitimacy is based on three things. First of all, the people who are asked to obey authority have to fell like they have a voice—that if they speak up, they will be heard. Second, the law has to be predictable. There has to be a reasonable expectation that the rules tomorrow are going to be roughly the same rules today. And third, the authority has to be fair. It can’t treat one group differently from another….
[W]hen the law is applied in the absence of legitimacy, it does not produce obedience. It produces the opposite. It leads to backlash.