Why are black people applauding Chris Dorner for shooting 3 police officers and killing one of them?

[Bob 0]

I see black people posting videos all over youtube and facebook of them actually cheering him on. I even heard acouple of black guys talking about it on a bus I was riding on, and saying the killing was justified. I mean I know blacks have had bad run ins with the police over the years, but to actually take joy from someones death? That slain police officer had a wife and kids. And black people hate it when whites treat them like violent thugs. But only a violent thug or complete psychopath would take pleasure from someones murder.