Blood Passage — Michael J. McCann

The first novel in the Donaghue and Stainer Crime Novel series. Would you believe a small boy who claims he was a murder victim in his previous life? Homicide Lieutenant Hank Donaghue and Detective Karen Stainer investigate a cold case in which little Taylor Chan begins to spontaneously recall memories of his previous life as Martin Liu, the victim in their case. Skeptical, Donaghue and Stainer are forced to play catch-up to the boy's Uncle Peter, a deadly Triad enforcer seeking vengeance!