The footage was taken by a neighbour three years before Digwa stabbed the 18-year-old student to death For free real time breaking news alerts sent straight to your inbox sign up to our breaking news emails Sign up to our free breaking news emails Sign up to our free breaking news emails Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice Newly-unearthed footage shows Henry Nowak ’s killer Vickrum Digwa wielding what appears