Sure. He was 10 feet away from the nearest cop, standing still, making no threatening moves, and the cop that shot him was 20 or 25 feet away from him. Looks like a clean kill to me. </sarcasm>
A man with a knife (or knives) is a grave threat to anyone armed with a gun within 21 feet.
This is what can happen when cops try to “reason” with lunatics with knives.
https://www.youtube.com/watch?v=KqMgG_FI2gI