What Remains: David Raker Missing Persons #6

Colm Healy used to be one of the Met's best detectives. Until, haunted by the unsolved murders of a mother and her twin daughters, his life was left in ruins. Missing persons investigator David Raker is the only friend Healy has left. The only one who understands that redemption rests on solving these murders. Their search will unravel a thread of tragedy spanning years, and will force them to sacrifice everything they have left...