Let the Devil Sleep(Dave Gurney‪)‬

Dave Gurney, a retired NYPD homicide detective, agrees to meet a woman making a documentary on ‘The Good Shepherd', whose shootings made headline news a decade ago. But the killings stopped, and nobody could say why. Finding himself back on the case, Gurney soon discovers facts the original investigation missed, and stakes his life on finding The Good Shepherd, making himself a target so that the killer will come for him.