investigation into these incidents, that distrust can grow. all those emotions are compounded when a 12-year-old boy is killed on video but the original grainy video that had been shown repeatedly on tv is only a small part of the story, important but small. that's why the case demanded an investigation to determine if this was indeed a tragic crime or a tragic accident. the supreme court instructs us to judge an officer's conduct by what he or she knew at the moment. not by what was learned later. we are instructed to ask what a reasonable police officer with the knowledge he had would do in this particular situation. the supreme court prohibits second guesting police tactics with 20/20 tactics and gives the benefit of the officers to make split second decisions when a