The Case of the Amorous Aunt (Perry Mason, #69)

From Massachusetts, rich Lorraine Elmore elopes with eye-patch swindler Montrose Dewitt to Arizona, where she sees him bludgeoned to death in the desert, but he dies in a motel bed from her sleeping medicine in his whisky bottle and icepick wounds. Suspicious niece Linda Calhoun, urged by law student fiancé George Latty hires California lawyer Perry Mason.