That cop is a liar. Simple as that. Or where is his body cam he was supposed to be wearing to document and support his claim? And where are the 2 body cams of the two cops who executed another guy on the ground? They were supposed to wear them. Both fell off at the same convenient time? Can't you see something stinks to heaven?
I'm not saying the officer isn't a liar, in addition to being emotionally and psychologically compromised. In the live stream, the officer is seen complaining the dying man did not follow his instructions. That could have been a lie for the camera. Continuing to point a gun in the dying man's face could also have been a lie about how dangerous the dying man was.