The family of Valdo Calocane say his mental illness was so severe, a psychiatrist warned he could “end up killing someone” three years before he stabbed three people in Nottingham. Calocane’s mother and brother have told the BBC’s Panorama programme they only received the 300-page medical summary containing the warning after his sentencing. He killed 19-year-old students Barnaby Webber and Grace O’Malley-Kumar as they returned from a night out, before killing school caretaker Ian Coates. He then stole a van and crashed into three other people, who were seriously injured. Calocane was diagnosed…