Barrister Robert Rinder examines the case of Anthony Richardson, who was attacked in broad daylight outside a shopping centre in Grimsby. CCTV footage helped Humberside Police piece together footage leading up to the incident to discover who was behind the fatal attack. Plus, how teenager Carly Fairhurst's decision to become a prison pen pal to convicted killer Darren Pilkington would change her own life and end in tragedy.