There's some new video up of the Dillon Taylor killing from Utah (the white guy). It's pretty obvious that he's wearing headphones, and was basically unaware of the cops as they were walking up behind him screaming at him to get his hands up. Then he turns, takes a second to react, and reaches to his obviously sagging pants for whatever reason. That's when they shoot him, under the presumption that he could be going for a gun.
My read on this is not so much that the police should have been charged (since we have to enforce the laws that exist, not the ones we want), but that the current standards for what counts as a reasonable threat to police are absurdly low. "He had his hands near his waistband" should not be sufficient cause to fear for your life enough to shoot somebody. There are so many reasons that someone might have their hands there, and then plenty why they might move them (especially for the saggy pants demographic).
For context on the level of danger faced by Salt Lake City cops, no police officer has been killed by violence since 1982
as far as I can find. Despite this, I'm sure that the police are convinced that they're under a constant state of siege from a bloodthirsty population looking to put cops in the ground.One source of the video