Memorial Service To Mark The 30th Anniversary Of WPC Yvonne Fletcher Death

LONDON, ENGLAND - APRIL 17: Parents of Yvonne Fletcher Tim Fletcher and Queenie Fletcher listen during a memorial service for the murdered Police woman Yvonne Fletcher in St James' Square on April 17, 2014 in London, England. Sir Bernard Hogan-Howe, the Commissioner of the Metropolitan Police joined friends and family for the service which marked the 25th anniversary of her death. Yvonne Fletcher, 25, was shot dead outside the Libyan embassy while policing peaceful demonstrations in 1984. No one has ever been charged with her murder. WPC Yvonne Fletcher, 25, was helping to control a small demonstration outside the Libyan embassy in St James's Square, London when she was killed by automatic gunfire on April 17, 1984. (Photo by Dan Kitwood/Getty Images)