Valdo Calocane: Warning over Nottingham killer years before attack was 'another kick to the teeth'
Calocane stabbed Barnaby Webber, Grace O'Malley-Kumar and Ian Coates in June 2023 and was convicted of manslaughter - rather than murder - due to his paranoid schizophrenia.
Please use Chrome browser for a more accessible video player
2:26
The son of Nottingham attack victim Ian Coates says reports a doctor warned years ago that Valdo Calocane could kill were "another missed opportunity".