Buildings burn on Tottenham High Road, London after youths protested against the killing of a man by armed police in an attempted arrest, August 6, 2011 in London, England. Twenty-nine-year-old father-of-four Mark Duggan died August 4 after being shot by police in Tottenham, north London. (Photo by Matthew Lloyd/Getty Images)

People walk past a burnt out van after riots on Tottenham High Road on August 7, 2011 in London, England. (Photo by Dan Kitwood/Getty Images)

Police officers stand on Brixton High Street after looting broke out on August 8, 2011 in London, England. Widespread rioting and looting took place across many parts of London in the early hours of Monday morning in a reaction to earlier rioting in Tottenham in North London. Major disturbances broke out late on Saturday night in Tottenham and the surrounding area after the killing of Mark Duggan, 29 and a father-of-four, by armed police in an attempted arrest on August 4. (Photo by Dan Kitwood/Getty Images)

Two young men are detained outside the Currys electrical store in Brixton on August 8, 2011 in London, England. (Photo by Dan Kitwood/Getty Images)

A girl is detained outside the Currys electrical store in Brixton on August 8, 2011 in London, England. (Photo by Dan Kitwood/Getty Images)