![A runner is helped during the final mile in Parliament Square during the London Marathon April 21, 2013. Undaunted by the Boston Marathon bombings, big crowds lined the route of London 's A runner is helped during the final mile in Parliament Square during the London Marathon April 21, 2013. Undaunted by the Boston Marathon bombings, big crowds lined the route of London 's](https://c8.alamy.com/compes/2e5kmn3/a-runner-is-helped-during-the-final-mile-in-parliament-square-during-the-london-marathon-april-21-2013-undaunted-by-the-boston-marathon-bombings-big-crowds-lined-the-route-of-london-s-mass-road-race-on-sunday-to-cheer-on-around-36000-runners-many-of-whom-wore-black-ribbons-to-remember-the-dead-and-wounded-reuters-eddie-keogh-britain-tags-sport-athletics-2e5kmn3.jpg)
A runner is helped during the final mile in Parliament Square during the London Marathon April 21, 2013. Undaunted by the Boston Marathon bombings, big crowds lined the route of London 's
![London, UK. 21st April, 2013. Mo Farah starts the Virgin London Marathon from Greenwich to The Mall via Canary Wharf Stock Photo - Alamy London, UK. 21st April, 2013. Mo Farah starts the Virgin London Marathon from Greenwich to The Mall via Canary Wharf Stock Photo - Alamy](https://c8.alamy.com/comp/D6NF17/london-uk-21st-april-2013-mo-farah-starts-the-virgin-london-marathon-D6NF17.jpg)
London, UK. 21st April, 2013. Mo Farah starts the Virgin London Marathon from Greenwich to The Mall via Canary Wharf Stock Photo - Alamy
![LONDON MARATHON 2013: Tsegaye Kebede wins men's race as glorious scenes contrast with Boston horror | Daily Mail Online LONDON MARATHON 2013: Tsegaye Kebede wins men's race as glorious scenes contrast with Boston horror | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2013/04/21/article-0-19698F88000005DC-742_964x502.jpg)