The fact that you don't see a problem with what Lebron did is part of the larger problem. LeBron's obvious intent was to inflict this individual pain. Maybe not murder, but pain. He's STILL mad at the guy, mainly because he is white. If the girl had stabbed and killed the other girl, Lebron wouldn't have said a damn thing.
Compare it to Mitchell, who has been tweeting all day, is probably even MORE socially aware, and didn't make an *** of himself over this.
Doxxing people has real world consequences. Someday it might even be you. It was me once. I had people threatening my kids and had to have round the clock police protection for two weeks. Lebron knew what he was doing.