I watched the video, and two things spring to mind. Firstly, we all heard a lot of shots that were fired. And clearly, at least one of the shots eventually took down the guy. But we don’t know how many shots were fired, and how many of those were hits, or where the hits were. And lastly - huge kudos to the officer. He held his fire for a long time giving that guy every chance to back down - at risk to himself. And while we can debate the nuances, the officer did stop the threat. He did a great job while under extreme stress.