I can’t read people’s eyes from a video or a screen capture, and I sure can’t read their minds.
Not that hard in this case - the video certainly is clear enough and Rush also noted it. It’s a bizarre look, for sure.
For all I know the cop could be racist, or he could be a devoted Democrat.
Or maybe he just snapped or had some ongoing mental issue. So, nope - it doesn’t have to have a racial component at all.
“All I know for sure is he killed a man who he had taken into custody.”
Well, he’s pretty much forfeited his own life, even if he were to be found not guilty. It will always follow him. If he ends up in prison, probably the kindest thing a guard can do is provide him with a length of strong bedsheet and leave him alone for awhile.