LONDON, UNITED KINGDOM - JUNE 17: Tributes are left in memory of Jo Cox MP on Parliament Square on June 17, 2016 in London, United Kingdom. Jo Cox, 41, Labour MP for Batley and Spen, was shot and stabbed by an attacker at her constituicency in Birstall, yesterday, before she was due to hold her weekly constituency surgery in Birstall Library. A 52-year old man is being held in Police custody in connection with her death. (Photo by Dan Kitwood/Getty Images)
