How the killing of George Floyd has upended America

Cities across the US have been convulsed by protests sparked by the killing of George Floyd, a 46yearold black man who died after being arrested and handcuffed by a white officer who then kneeled on his neck for several minutes. Floyd pleaded that he could not breathe and among his last words were don t kill me. The incident has caused a reckoning over race and police killings of black Americans and demonstrations have spread from Minnesota to other parts of the US including New York, Denver, Chica