The NHS trust that treated the triple killer Valdo Calocane in the years before the Nottingham attacks is being investigated by police for corporate manslaughter.
Calocane, who has paranoid schizophrenia, was sentenced to an indefinite hospital order after he fatally stabbed the 19-year-old students Barnaby Webber and Grace O’Malley Kumar, and the 65-year-old caretaker Ian Coates, on 13 June 2023.
