I don't know if anyone can be blamed in this horrible situation. It seems like so many elements came together to create the outcome of this situation.
Is it right that he was killed, no of course not. But can you blame the police? Or can you blame the guy for running? I guess we won't know until the details come out.
I mean, it's a sad case, and maybe the only good to come of it will be that the need for as much restraint as possible when it come to taking drastic action.
However, you can plainly see how hard a job police forces have. What decision do you make on a whim?
You need to respond to the situation as you experience it. You have to make a decision on a dime, and people could die. What's the right choice? What's the wrong one? If the guy had been carrying a bomb, then people would have been saved. Now he wasn't, and a horrible mistake was made and now people have to live with the consequences. These kinds of decisions are made every day, both right and wrong.
I'm not saying we should accept wrong decisions, but we can't be so quick to lash out when horrible mistakes are made in situations that are so complex.
People try to do their best every day, and we can only hope that they make the best decisions they can in any given situation.