Keir Starmer and Sadiq Khan laid wreaths at the 7/7 memorial in Hyde Park on Monday to commemorate the 20th anniversary of the London terror attacks. The prime minister and the London mayor walked side by side as they paid their respects to the victims of the terror attacks. Report by Kennedyl. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn