On February 15, 2009, Cathy McNaughton was stabbed to death in her home in Sharpsburg, Georgia. Her husband, Alec, claimed he had served her breakfast in bed and then went to his mother's house, about an hour away. But cell phone records placed him just two miles away. Police discovered a secret file in Cathy's closet that included photographs of a bruised and battered Cathy. “48 Hours" correspondent Richard Schlesinger reports. This classic "48 Hours" episode last aired on 8/31/2013. Watch all-new episodes of “48 Hours” on Saturdays, and stream on demand on Paramount+.