Chants of “I can’t breathe” rang out across central Manchester as anti-racist protesters took to the streets to demonstrate as part of the Black Lives Matter movement.The haunting last words of George Floyd were repeated again and again and plastered across banners and placards during a huge protest in the city centre.Mr Floyd’s death has sparked protests across the United States and the UK with thousands of people marching on cities to demand change.Mr Floyd, 46, died in police custody in the