I'm sorry to sound horribly callous, but I have a hard time getting angry that the police killed a man with a knife threatening them AFTER trying pepper spray. If he didn't want to be shot by those cops he had ample opportunity to STOP THREATENING THEM WITH A DEADLY WEAPON! Police brutality is a legitimate issue, but shooting someone with a knife after trying to safely disarm them is not police brutality, it's common sense policy. When did people with violent intent suddenly have the absolute right to safety at the expense of cops'? maybe I was just raised differently, but I've always known you don't threaten cops with weapons unless you want trouble.
Anyone who thinks there are easy or safe ways to disarm someone with a knife hasn't tried before. If a man didn't react to pepper spray, I have a hard time believing a shot to the arm would stop him. Have you ever seen the results of pepper spray? My brother had to be pepper sprayed as part of their training. He's a big tough guy and he was down. The instructors took pictures of it so they would never forget how serious pepper spray is. If a man can withstand that without being affected, he's not going down from a simple flesh wound to the arm. It's easy to say what they should have done when it presents no risk to YOUR safety.