Here is the general rule to follow; If the perps are white and the victim a minority, you will see and hear about it on the national news. Also, you will be given the race of the perps and the race of the victim. Included with be a background report on how racism continues to exist in the U.S.
If the perps are minorities and the victim white, you may hear or read about it in your LOCAL news.
If the perps are black and the victim white you won’t hear about it at all.