The public inquiry into the Nottingham attacks will be a "test of whether this country is prepared to confront failure and fix it", the victims' families have said. The judge-led inquiry is due to examine events leading up to the killing of Ian Coates, 65, and 19-year-old students Barnaby Webber and Grace O'Malley-Kumar by Valdo Calonane in June 2023. Evidence will be heard relating to the actions of agencies that had previously dealt with Calocane, who had been diagnosed with paranoid schizophrenia. Barnaby's mother Emma Webber has called for "accountability right down to an individual level" at the statutory public inquiry in London, which is due to run until May. Calocane is serving a hospital order after pleading guilty to three counts of manslaughter on the grounds of diminished responsibility, and three counts of attempted murder. The families affected have always been unhappy with that outcome.…