Stop with the strawman argument. You are the one that said cops should never shoot first. Nobody supports shooting innocent people.
Cops or armed citizen, it's the same thing. If you think a victim has to wait to for his attacker to shoot first or it's murder then you are nuts. Yes, legal self-defense (by a cop or anyone else) hinges on belief in the danger of death or great bodily harm being
REASONABLE and the threat being IMMEDIATE and (in some states at least) only after having tried to retreat. Please stop ignoring that fact or saying courts never hold anyone to that standard. No legal definition has slipped.
I'm not going to get into this debate about how racist cops are or how stacked the courts are against blacks. Here is an article that sums up a lot of what I feel is wrong with both side's narrative on that:
Desmoinesregister.com: police-and-racism-what-statistics-show-stereotypes. You can choose to acknowledge this or not.
Have a nice day.