Profile of a murder: a lt. valcour mystery

The strangling of a wealthy woman at an opulent Andirondack estate brings Lt. Valcour to investigate. He knows immediately who committed the crime, but can he prove it? "Good yarn. Valcour has a hard time getting evidence against a peculiarly successful criminal, though he spots the guilty one at the start." -- Kirkus "Designedly transparent as mystery, but suspense keeps up to concert pitch all the way." -- The Saturday Review