The London Bridge attacker was heralded as a success story of the rehabilitation initiative that he went on to attack, it emerged on Sunday night.

Learning Together, a Cambridge University programme, worked with Usman Khan in prison and after his release and used him as a case study to show how they helped prisoners.

Khan even wrote a poem and a thank-you note to organisers after they provided him with a computer he could use without breaching a licence that banned him from going online.

Just months later the 28-year-old used his connection to the rehabilitation initiative to get permission to travel to London and kill two of those people who were trying to help him.