This latest incident of blacks committing violent acts against white people is rather embarrassing for Big Media. This is one they couldn't cover up. This foils the narrative i.e. white people constantly doing evil things to black people, but not vice versa.
The unfortunate fact is that blacks commit a lot of violent crime and most of it is directed at other blacks. But it is also far more likely that blacks will commit violent acts against whites than vice versa.
That is almost totally ignored by Big Media who struggle to keep the Evil Whitey narrative going full blast.
That is why they were overjoyed with the murders of the black people by white Dylan Roof. That propelled the narrative of Evil Whitey.
Big Media doesn't care about black people or white people being murdered. The most important thing is to keep the narrative of an evil, racist, White Supremacist America going. Telling the truth is the last thing they want to do. But they can't always keep the lid on the truth, and sometimes these types of stories get out.