A British judge has sentenced two men to minimum prison terms of 14 and 15 years for the murder of a black teenager in 1993.

Judge Colman Treacy told a London court Wednesday the murder of 18-year-old Stephen Lawrence was an “evil crime” motivated by racial hatred. He sentenced Gary Dobson to 15 years and two months in jail, and David Norris to 14 years and three months for the murder. The two — both white — were convicted on Tuesday.

The judge said the pair would have faced longer sentences but for the fact that they were teenagers at the time the crime took place. He noted the lack of remorse and the racial motive for the attack.

The London police chief said the force would continue efforts to bring to justice others involved in the murder.

Lawrence was stabbed to death at a bus stop in southeast London by a white gang in April 1993, but it took nearly two decades before anyone was convicted.

A subsequent investigation into the botched police probe led to criticism of London's Metropolitan Police as “institutionally racist” and charges of professional incompetence, leading to an overhaul of the police force.