Britain's main opposition leader called on Saturday for an investigation and said there were questions for the probation service and parole board after a man who had been convicted on terrorism offenses killed two people at London Bridge. 'There's got to be a very full investigation and clearly there's been a disaster,' Labour Party leader Jeremy Corbyn told broadcasters. Wearing a fake suicide vest and wielding knives, Usman Khan went on the rampage on Friday afternoon at a conference on criminal rehabilitation beside London Bridge. He was wrestled to the ground by bystanders and then shot dead by police.
