One of the people stabbed to death in Friday’s attack at London Bridge has been named as University of Cambridge graduate Jack Merritt.He was one of two people killed when 28-year-old Usman Khan launched the attack at a Cambridge University conference on prisoner rehabilitation.Khan was shot dead by officers after members of the public restrained him. A woman who died in the attack has not yet been named. Three others were injured.This breaking news story is being updated and more details will be published shortly. Please refresh the page for the fullest version.You can receive Breaking News on a smartphone or tablet via the BBC News App. You can also follow @BBCBreaking on Twitter to get the latest alerts.