Acts of the Assassins by Richard Beard
SHORTLISTED FOR THE GOLDSMITHS PRIZE A charismatic cult leader is dead. One by one his followers are being assassinated. Enter Gallio. Gallio does counter-insurgency. But the theft of a body he's supposed to be guarding ruins his career. Years later, the file is reopened when a second body appears. Gallio is called back by headquarters and ordered to track down everyone involved the first time round. The only problem is they keep dying, in ever more grotesque and violent ways. How can Gallio stay ahead of the game when the game keeps changing?