I don't understand why this is a black/white thing, rather than an overmilitarized police force (that is historically under average in intelligence). There are many cases of these outside the random target gun or Missouri street, like this guy shot in New Mexico wielding a knife after a bit of negotiations...
Police Shoot Homeless Man During Camping Arrest (GRAPHIC VIDEO)
or the baby who had a flash bang grenade thrown in to his crib by people looking for a meth user who in fact was not even home and never found with any drugs I believe (or arrested and held). A no knock warrant issued with no information about what was inside...
Baby in Coma After Police ‘Grenade’ Dropped in Crib During Drug Raid - ABC News
Or a recent case I believe in NC or somewhere that a kid with schizophrenia was shot wielding a screwdriver in his home with 3 officers there. It seems that police shootings are all over the place and the people who really suffer (other than the deceased and their families) are the taxpayers who end up not only footing the bill of the settlements, but get to watch as most of these police officers are put back on the street.