It’s sad how you think anybody who even appears to pose a threat to a police officer is forfeiting their life by not immediately dropping flat on the ground with their hands above their heads.

The kid dropped his gun, you can see and hear it, it landed in the driveway on the lower left of the screen.

The officer had NO REASON to fire at that point, when the kid had his back turned and was clearly just trying to make it out of there alive. Fight or flight response meant he definitely wasn’t thinking clearly but he was also in no way a threat to anybody.