Panorama investigates whether an innocent man is in prison wrongly convicted as a serial killer. Scots nurse Colin Norris, dubbed the Angel of Death, is serving a minimum of 30 years in prison for the murder of four elderly patients and the attempted murder of a fifth. It was a case that captivated the nation. Reporter Mark Daly reveals new evidence that casts serious doubt on ...$可以拍悬疑剧的经典案子