Commentary It is difficult to change a narrative once it has been established in the public’s mind. A narrative was firmly fixed by the media, activists, and rioters prior to the trial of Minneapolis police officer Derek Chauvin, which opened Monday. Chauvin is charged with murdering George Floyd. Many people have seen the nearly nine-minute video of Chauvin pressing his knee on Floyd’s neck while Floyd pleaded, “I can’t breathe.” What they may not have seen, and the jurors should view, is a much longer treatment of the scene that begins with a store owner approaching a police officer, claiming a man, later identified as Floyd, had passed off a counterfeit $20 bill. The owner points to a car across the street. He says the man is in it. In a video compilation from police body cameras, bystanders and a shop camera, Floyd is in an agitated state, first saying, …