'It was one of the worst homicides I've ever investigated'

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In June 2023, Valdo Calocane killed Barnaby Webber, Grace O'Malley-Kumar, and Ian Coates in an attack in Nottingham, and went on to injure three others. The BBC's Asha Patel takes you through week 4 of the inquiry so far, which has seen yet more harrowing footage of Calocane, and Nottinghamshire Police answering difficult questions about CCTV. Follow this series to get updates on the public inquiry, which will examine the events leading up to the attack. Image: Getty Images