The guy had a weapon and caused his own troubles.
Starting at about the 1:25 mark on the video you can clearly hear the guys referring to knives and such.
Apparently the police are supposed to wait until the guy gets close enough to stab them before taking action. . .like FReepers here would do if confronted by an armed man.
Well yes. They do have to wait until he's close enough, among other things, to be a threat. Why should they shoot when he's not a threat? Think about it.
Having a knife, being armed, is not enough to shoot someone. Not for self-defense and not for cops. In many places it's perfectly legal to be armed. Are cops allowed to go around shooting legally armed people? Of course not. There's more involved than being armed.
Because of cops and gun laws, all of the armed men that I have had to disarm, I had to do it while unarmed myself, except for a pool stick once, that was for a knife, with guns, it was always barehanded.
There are a number of freepers that have been around violence a lot, and we marvel at the cowardice and incompetence of some of these jokers that are cops, for instance in this video, where they managed to turn a little run in with a homeless guy, into an expensive killing.