If so please provide a cite or link.
Although out of thousands of cops in the USA I am sure there are some genuine racists the notion that in 2020 cops would be killing blacks intentionally at a higher rate seems ridiculous. 99.999% of cops want to have an easy shift, get a donut or two, write a couple tickets, watch the years go by, retire early and collect a pension. Plenty of poor and middle class whites have been killed by abusive individual cops over the years and yet the reaction is not tribalism, rioting or generalising the actions of few bad cops to the police force as a whole. I agree America has massive problem with overly militarised police but this is not a racial issue. It stems from the drug war and the ease with which criminals can get high powered weapons in America. See North Hollywood Shootout.