London Mayor Boris Johnson speaks at a memorial service for Stephen Lawrence at St Martin-in-the-Fields Church on April 22, 2013 in London, England. Stephen Lawrence, a black A-level student was stabbed to death at a bus stop twenty years ago by a gang of white youths in a racially motivated attack in Eltham, south-east London, on April 22, 1993. Two men, Gary Dobson and David Norris were found guilty of his murder in January 2012.
{"Image ImageDescription": "LONDON, ENGLAND - APRIL 22:  London Mayor Boris Johnson speaks at a memorial service for Stephen Lawrence at St Martin-in-the-Fields Church on April 22, 2013 in London, England. Stephen Lawrence, a black A-level student was stabbed to death at a bus stop twenty years ago by a gang of white youths in a racially motivated attack in Eltham, south-east London, on April 22, 1993. Two men, Gary Dobson and David Norris were found guilty of his murder in January 2012.   (Photo by Andrew Matthews - WPA Pool/Getty Images)", "Image Copyright": "2013 Getty Images"}