More Than Murder

Why has this guy been murdered?
Jason Belvedere is found dead in his car on a sunny Sunday afternoon at the local golf course.
There's no apparent reason for the murder: the man has has no criminal record or apparent enemies.
When the cops can't close the case, the dead man's widow calls in Alastair Stewart of Endwell Investigations.
While his faithful partner, the rescue dog Sherlock, investigates her own case of a missing cat, Alastair ultimately uncovers a mob connection and a long-running but well-hidden criminal operation.