LONDON, ENGLAND - AUGUST 08:  Rioters set fire to barricades they constructed in Goulton Road, Hackney on August 8, 2011 in London, England. Pockets of rioting and looting continues to take place in various parts of London this evening prompted by the initial rioting in Tottenham and then in Brixton on Sunday night. 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 Istitene/Getty Images)