This was a completely senseless crime, caused by a hypervigilent, incompetent and thus extremely dangerous police officer with hair trigger reflexes. How many more people have to die? How many more families will mourn the unjust loss of a loved one while their murderer(s) go free? How many times will the courts allow the police - some of whom manifestly lack the judgement and/or training to make good decisions, including whether they are truly in danger - to kill innocent citizens because of their unfounded fears?  The "I felt in fear for my life" standard needs to go, and go now. Hold these officers accountable and most importantly, hold their fellow officers and superiors accountable.  Police officers need to be strictly vetted and trained extensively before being handed a weapon and the authority to use deadly force.  The ones who cannot control themselves cast a shadow over those officers who can and who do an extremely difficult job well.