You aren't from America so maybe you don't quite understand what the media does here. CNN, MSNBC, ABC etc all relentlessly push the white racism angle. If the story had a white perpetrator they would have shown the picture. Since the facts didn't align they didn't show the picture and didn't mention the race of the person committing the racist attack.
This is the same sort of thing that MSNBC did with another story from the Obama years:
https://www.mediaite.com/tv/busted-m...l-gun-footage/
The media in America is trying to push an agenda. When the facts don't fit the agenda they selectively leave items out of the story or attempt to bury them.