Part of the reason for the continuation of the violence in these communities is that the residents support the perpetrators. Many indirectly support them because they are afraid to speak out and many more support them because of the "Don't be a rat" culture that is bred into them. Some horrendous act will have to occur to smack them in the face and bring their outrage to the surface. The cops can only do so much and what they do is mostly based on what someone tells them, whether it is an informant, defendant, or witness.
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