It's complete craziness.
Most of the time, police shootings are a (sadly) necessary (with the US's open door on gun ownership) process, which the police need to do, to avoid getting shot and killed themselves and/or keep safe the general public.
Rarely, this process does go wrong, and partially/fully the police are at fault or to blame. But it is like this in other jobs.
E.g. A surgeon may accidentally make a mistake, and the patient dies.
If a patient dies partly/fully due to a doctors mistake, you DON'T go to a hospital and shoot dead, 4 doctors.
I'm disappointed with groups like the BLM one.
It should/must be ALL LIVES MATTER or similar.
They seem to be increasingly creating a kind of terrorist group, within society. Which seems to be willing to gun down innocent police.