On 29 November 2019, five people were stabbed, two fatally, in Central London. The PAKI perpetrator, Usman KHAN, had been released from prison in 2018 on licence after serving a sentence for terrorist offences. The PAKI Mayor of London, Sadiq KHAN, thanked the emergency services and members of the public who helped to restrain the attacker, saying they had shown "breathtaking heroism.”
https://www.youtube.com/watch?v=wQdxqyEMD1c