A man has suffered a life-changing head injury at a Liam Gallagher concert in Cardiff, police have said. Officers said the 34-year-old was assaulted between 21:30 and 22:00 BST on Thursday, 15 September. The open-air gig, featuring the former Oasis frontman, was held at Alexandra Head, near Cardiff Bay Barrage. South Wales Police said it was appealing for witnesses, particularly those who may...