I will say that the protests are not effective ones. You have to have a goal and a clear direction of who or what needs to change to achieve this. Destroying things even if it's a small percentage starts to discredit the legitimate. I believe the issue with this case from the protesters perspective if about racial profiling or unwarranted use of lethal force. A better protest would simply be following on duty police officers around or just dialing in a shit load of fake calls and when they show up it be nothing but protesters and film the interaction. But I know very little about these sorts of things.