There are no rules of journalistic ethics being observed of any kind whatsoever...especially with stories in furtherance of the liberal agenda and/or some protected class.
This story is the epitome of sensationalist reporting and stands as an archtype example of leftist media bias. You'd think these scoundrels would have learned their lesson, but they just couldn't help themselves. But they never do learn their lesson. They thought they had a leadpipe cinch case of a racist white murdering an totally innocent black child just because he, the child, was black. Then as the story develops, and as it turns out, not only did the media get story almost 100% wrong, it turns out the racist white involved is not only not a typical white person, he's part black and hispanic.
Rest assured, all the usual suspects in this farce will keep on with the racist-white-murdering-an-innocent-black-child story for as long as they can. Because above all they're shameless. And they're probably hoping for similar story to happen soon so they can keep going with the America Is A Racist Hellhole meme.