BBC News with Iain Purdon

A court in London has found two men guilty of killing a black teenager, Stephen Lawrence, nearly two decades ago. The men, David Norris and Gary Dobson, were both convicted of murder. Stephen Lawrence was stabbed to death at a London bus stop in 1993 in a racist attack. The case became a defining moment for race relations in Britain. Zoe Conway reports.

The murder, on the face of it, was not an especially hard case for the police to solve. Within hours of the attack, members of the local community were blaming local white youths. Yet, it took weeks for arrests to be made. The case fell apart. The police failed. Years later, a public inquiry would conclude that failure was a result of the Metropolitan police's "institutional racism". They were two words that would rock the British establishment. Sweeping changes to the way Britain's criminal justice system dealt with race would follow. Throughout it all, Stephen Lawrence's parents, Doreen and Neville, refused to give up on justice for their son: an 18-year campaign that would win the support of Nelson Mandela amongst others.