sarah rainsford, bbc news, kyiv.ey will meet the prime minister next week to call for a statutory public inquiry into what happened. a review into the care that valdo calocane that there had been a catalogue of failings. simonjones reports. it's more than 18 months since ian coates, barnaby webber and grace o'malley—kumar were stabbed to death, but their families say they are still fighting for answers. taser, taser! stay where you are. this is the moment valdo calocane, a paranoid schizophrenic, was arrested. order for manslaughter. an independent review of his care prior to the attacks, published on wednesday, found his risk was not fully understood or managed. good morning, everybody. once again, thanks for your attendance. that the authorities, who they say failed their loved ones, still need to be held to account. to the prime minister and the rest of the government, make this trauma stop and make ourfight stop now. you have confirmed there will be a public inquiry, but agree the terms that we have been pleading