That's how it sounds on the vid. They didn't have time for anything else to happen. The gunshots rang out almost right after he demanded he drop the knife for no reason.
My personal opinion has always been that cops have too much perceived power. Cops are not supposed to be baby sitters for the rest of us....so demanding a grown man put a knife down just because you see a knife is fucking retarded and shows how much they disrespect the community they are supposed to be serving.
I had a cop about 2 months ago pull me over while I was riding my bike for NO reason. I wasn't speeding, hadn't changed lanes (illegally or otherwise) and was on my way to work. He still wrote me a ticket saying my license plate was obscured (IT WASN'T). I had to miss a day of work just so they could dismiss this in court.
In conclusion, a cop can pull you over, force you to lose money from work in great excess to any ticket, all because they can even if you do nothing wrong.
I think they need to be "depowered".