Once a cop. Ex-NYPD detective Dave Gurney is supposed to be retired. But people with problems keep knocking on his door. Like the police, who are baffled by a gruesome murder they just can't seem to solve.  Meer

It begins with a letter. The letter contains a request - think of a number - and a sealed envelope. Inside the envelope is that number. When Dave Gurney, retired NYPD homicide detective, is contacted by an old college acquaintance about startling letters he's been receiving.  Meer

A decade ago a series of roadside shootings made The Good Shepherd killer headline news. But then the killings stopped, and nobody could say for sure why.  Meer