On June 29, 2009, Brian Davis disappeared. According to his wife, Robyn, and her best friend, Carol Saltzman, Brian had left to go boat shopping and never came home. Police soon began to suspect the women when an examination of their cell phone records convinced police that they were lying. The two were both charged with murder when Brian was found shot to death alongside his car on an isolated road in St. Charles, LA. “48 Hours" correspondent Erin Moriarty reports. This classic "48 Hours" episode last aired on 4/13/2013. Watch all-new episodes of “48 Hours” on Saturdays, and stream on demand on Paramount+.

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