This has been going on for decades. Richard Pryor did a routine back in the early 70s where he was pulled over by a cop and said slowly “I am reaching for my wallet. I don’t want to be no m f statistic.”
If Yanez truly thought the guy was reaching for a gun AFTER he told him to put his hands on the dash then it’s perfectly understandable why he fired.
My beef is the perp was allowed to lay there and bleed out.
Sadly, that seems to have become SOP.
You'd get faster help getting shot on a battlefield than if you got shot by a cop. There are some things that CAN be cleaned up, and that's one of them. The other is emptying magazines into the perp. Enough is enough.