Our sympathies should go out to the young man who discharges his gun. He will live forever in the guilt of shooting to death a fellow human being.
Not to diinish the threat, but 15 cm is the length of some men's middle fingers... in other words, a small knife. Not a parang, not a commando hunting knife with saw tooth edges, etc.
I absolutely love the way one can sit behind a computer screen and casually dissect the entire shooting as if he were there.
I have no illusions about how you think and of course, i would even hesitate to even, for a moment consider how you will so skillfully react to the situation, dis-arming the armed subject who has just murdered someone and come out unscathed.
The Police Officer is also human. He too has a family to care for. Would you rather see photos of the wife/parents crying her/their eyes out and then go, "poor thing...". In fact, i would even wager, if the officer was hurt or killed, then we will have the very same arm chair critics asking why wasn't his gun drawn? Or present a whole host of various scenarios to share how wonderful their hind sight can be.
If the officer has to live with the guilt, then at least we can say he can at least feel guilt. I do not think we can say the same for a murderer who decides that just because he wields a knife in a public place, he was do as he damn well please.
The swift decisive action of this officer saved not only his own life but the life of many innocent by-standers who might have been injured, or worse, killed by the knife wielder. He was placed in a situation where he knows he had to make a decision and he had to do it accurately.
He was brave enough to know that he will have to answer for his action and yet, he carried out his duties so that alot of people can go home safely to their loved ones.