sounds like a an automobile accident injured a child. it isn't clear who was at fault. compounding the tragedy, it appears two relatives of the injured party tried to murder the driver and he fired on one in self defense. even the neighbors and witnesses did not deny the two men attacked the driver, they just said 'we didn't know he was a cop.' i suppose if he was a civilian it would have been okay to beat him to death? or at least less dangerous. at least in that case it would not have made the news.
judging from the comments so far, it appears none of you even watched the video?