The Rising (Inspector Devlin, #4)

The  fourth thriller in the Inspector Devlin series, impeccably written  crime set in the Irish borderlands 

When Garda Inspector Benedict Devlin is summoned to a burning barn, he finds inside the charred remains of a man who is quickly identified as local drug dealer Martin Kielty. It soon becomes clear that Kielty's death was no accident, and suspicion falls on a local vigilante group. Former paramilitaries, the men call themselves The Rising. Meanwhile, a former colleague's teenage son has gone missing during a seaside camping trip. Devlin is relieved when the boy's mother receives a text message from her son's phone, and so when a body is reported, washed up on a nearby beach, the inspector is baffled. When another drug dealer is killed, Devlin realizes that the spate of deaths is more complex than mere vigilantism. But just as it seems he is close to understanding the case, a personal crisis will strike at the heart of Ben's own family, and he will be forced to confront the compromises his career has forced upon him.