Valdo Calocane was diagnosed with paranoid schizophrenia. He'd been arrested and sectioned for violent offences multiple times. He was known to carry knives. And yet on a June morning in 2023, he was free to roam the streets of Nottingham, where he killed three innocent people.

In this episode, Emma Webber - mother of 19-year-old victim Barnaby - tells Andy and Neil about her fight for answers. She reveals how the families discovered the deaths were preventable, the litany of failures by police and mental health services that left Calocane free to kill, and her fury that not a single person has been held accountable for the errors that cost Barnaby, Grace O'Malley-Kumar and Ian Coates their lives.

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