DoubleNaughtSpy,
Are you a police officer or another law enforcement official? I don't believe you are, based upon your previous posts here and elsewhere. And, of course, I have no clue of your background, experience, and training. However, I would like to say I personally find your comments quite nieve.
Sarge, and all the others here have hit the hammer on the head. You don't bring a knife to a gun fight. It doesn't matter if the guy was pointing the knife at the police or himself. It can be turned on those officers in a fraction of a second, killing and/or injuring them. Its not what the suspect is doing, its the circumstances surrounding what the suspect is doing.
I, like Sarge, have to train police officers, write policies, and defend said police officers and policies in court. Simple, plain facts and common sense is what matters here. Written laws, policies, and procedures, are just that; written. They CANNOT cover every possible scenario out there.
There are two points to the "law." The letter of the law and the spirit of the law. Your correct in your assertation the "letter of the law" was violated. However, was that the spirit of the law? The law said you can't use deadly force on a suicidal person. Ok, fine. TECHNICALLY, fine. However, these officers used the "spirit of the law" to get their job done.
Under extreme stress, in a fast paced, moving, fluid situation, these two officers made a decision. Based upon their own training and experience. They ended the standoff without killing someone and, more importantly in my book, without injuring themselves. For that I applaud them.
At the sametime, if they were MY officers, I would have my foot up where the sun doesn't shine. You don't shoot to wound. Wounded people and animals, are still a threat. I don't train my officers that way and I wouldn't expect them to react that way.
At the end of the day, my job is to go home, with my uniform, skin, blood, etc all intact. No matter WHAT gets thrown at me. And, I will take whatever means necessary to that end. I expect every police officer in this country to do the same.