That’s the main reason. Black kills Whites is not the kind of message the media wants to send.
Interestingly, both Bing and Google do NOT change this search string, but produce legitimate results:
“Black kills Whites “
I googled the story, read through the top 5 news stories, not one mention the man name preceded by the floor of his skin, in fact one “USA TODAY” article actually gave cover to the fact he was BLACK and likely the reason he went ballistic, he was a victim himself they believe because he was black and being a minority he was on the receiving end of racism from a co-worker.