Delia Rosen provides an entertaining deli whodunit. --Mystery Gazette on One Foot in the Gravy Deli owner Gwen Nashville Katz has certainly had some very un-Kosher experiences since her move from New York--dead customers, dead street musicians, dead deliverymen. Sometimes the country music capital of the world feels more like a cemetery. But Gwen is finally knocked flat on her tuchas when a van comes plunging through her roof,...