The boy was killed after a fight broke out on Henbury Street, a residential road between Rusholme and Moss Side.Another 16-year-old boy was also seriously injured after being stabbed just yards away on Rosbery Street in Moss Side.Police have confirmed both incidents are connected.Three other teenage boys, two aged 15 and one aged 17, went to hospital themselves with 'minor injuries'.All three have been arrested on suspicion of murder and are being held in custody.Another 17-year-old boy has also