By Andrew Bardsley & Monica Charsley A twisted killer hit a man over the head with a magnum-sized champagne bottle and then left his “barely conscious” victim for dead in an alleyway. Dean Hughes, 47, has been slapped with a life sentence for the murder of Shane Maloney, 28, after he attacked his victim with “brutal ferocity” at a house in Leigh, Greater Manchester. The pair were not known to each other before the fatal incident. Mr Maloney sadly died 15 months after the attack, after he suffered “life-changing” brain injuries. The extent of his injuries were so bad that he was unable to walk …