Gunsmoke. November 14, 1952. CBS net. "The Square Triangle". Sustaining. Eva Morley causes the death of three men. There aren't many women like her!  Clancey Cassell (announcer), Georgia Ellis, Harry Bartell, Howard McNear, Jack Kruschen, Lawrence Dobkin, Les Crutchfield (writer), Lillian Buyeff, Parley Baer, William Conrad.