The Eyewitness by Stephen Leather

Jack Solomon is a messenger of death. Working in the fractured remains of Yugoslavia, his task is to identify the victims of ethnic cleansing and to tell families that their loved ones are never coming home.

Years of working in the killing fields have desensitised the former London policeman to the horrors of war, but when a truck containing twenty-six bodies is pulled from a lake, Solomon is unable to walk away from the case.

He sets out to track down the only survivor of the massacre, a young girl on the run from the killers. Solomon's hunt for the last witness leads from the brothels of Sarajevo to the high-stakes world of London's internet prostitution - where he will discover that the killers are closer to home than he thinks . . .