Anyone commenting adversely towards these cops, that hasn’t read up on the Tueller drill, is talking out of an orifice other than their mouth. You are spot on, in how fast things can go south with an attacker with a knife.
My everyday carry includes a speed opener assisted knife, it doesn’t take a second or two to open. Closed and in my hand the opening is near instantaneous and I’m 70.
With a closed knife in hand an adreline jumped up young man can start his rush from 20 feet away, be within striking distance before the cop is aware of the fatal threat.
This instance was suicide by cop by a deranged sexual deviant activist well aware of the “political” effect his death would have. He wanted the theater and group think reaction.
Drop what ever is in your hand or be dropped...the choice was his, as was the drama queens staging of the event.