The defense turned the tables this week in the Derek Chauvin case, getting the star prosecution witness, the police chief, to admit that the videos appear to show Chauvin kneeling on George Floyds' shoulder blade, not his neck. The prosecution has also paraded a bunch of police witnesses to say knee-on-neck has never been allowed as part of police training, except it most certainly was. Yet another police witness admitted that a knee to side-of-neck pin should render a person unconscious in ten seconds, yet Mr. Floyd famously resisted for nine minutes. Add to that autopsy showed bruises not on...