@McGentrix,
In both Baltimore and Charlotte, black cops were involved in incidents that led to a black man's death. In Charlotte the cop who shot and killed the black man was himself black. I think it's been proven that the shooting was justified but the initial reaction of a certain segment of the community was to attribute the shooting to racism.
It's a safe bet that there is a certain amount of racism within police forces, since there is a certain amount of racism in the restaurant business, Congress, the military and any other organization or group consisting of human beings.
The question is whether or not racism is the primary motivation of the killing of black men by police...even when the killing is not justified.
Given that black men have been killed by black cops and that white men have been killed by police (apparently more often than black men) it would seem that where the killing isn't justified, the problem is cops who abuse their power because of psychosis, lack of impulse control, or simply because they like to . I can't know for certain of course, but I suspect that a cop who wrongfully kills a black man is not a model of restraint when facing white suspects.