Usman Khan’s time in prison could hold the key to explaining his murderous attack
London Bridge terrorist Usman Khan appears to have spent some of his final months behind bars at HMP Whitemoor, a high-security prison near Peterborough, where some of the country’s most dangerous people are held. The prison’s chequered history could be relevant to the horrific events that unfolded in the capital last week. I last visited Whitemoor