A Memorial Is Held On The 20th Anniversary Of The Murder Of Stephen Lawrence

LONDON, ENGLAND - APRIL 22: Politician Duwayne Brooks arrives at a memorial service for Stephen Lawrence at St Martin-in-the-Fields 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 Peter Macdiarmid/Getty Images)