Difficult to say considering the circumstances. It's tough to arm chair these things after the fact.
Still, the word taser comes to mine here.
Yeah, but at the same time I don't think this warrants disciplinary action of any sort. The guy was approaching a cop with a knife, refusing to drop it, and daring the officer to shoot him. I mean I can't really say I blame the cop for shooting him given the circumstances. For all the officer knew, the guy could've been about to charge and try to stab him to death. It's sad, but sometimes split-second decisions are necessary under such circumstances.