Dr. Martin Tobin testifies Derek Chauvin's knee stayed on George Floyd's neck 3:27 minutes after he took his last breath
Get the Full StoryGeorge Floyd died of a low level of oxygen as Derek Chauvin pinned him to the street, doctor saysShare:
Get the Full StoryGeorge Floyd died of a low level of oxygen as Derek Chauvin pinned him to the street, doctor saysShare: