Just 27 seconds of savagery left Charlie - and one of his killers - bleeding to death on a roadside. This chilling account exposes the sheer folly of Sadiq Khan's softly-softly stance on knife crime

On a Saturday afternoon in November 2022 police in south-east London were confronted with a grim puzzle - the bodies of two 16-year-old boys, less than a mile apart, both of whom had been stabbed.