The head of Scotland Yard has told the racist thugs who continue to dodge justice over Stephen Lawrence’s murder: ‘We are after you.’ On the eve of the 20th anniversary of Stephen’s killing, Sir Bernard Hogan-Howe renewed his pledge to catch the rest of the gang. The Metropolitan Police Commissioner offered to place anyone who has vital information about Stephen’s murder in the police witness protection scheme. He insisted he was confident his force would make further progress in the inquiry, and hinted his officers might one day visit one of the men already convicted of Stephen’s murder in prison. Sir Bernard’s bold words came in an interview marking the 20th anniversary next Monday of the A-level student’s murder. Asked what his message is to the killers who are still at large, he said, without referring to any suspects by name: ‘We are after you.’ His statement will pile pressure on unconvicted prime suspects Neil and Jamie Acourt, and their friend Luke Knight, who were famously na