In 2004, successful Florida lawyer, John Sutton, and his wife, Susan, were gunned down in their home. Susan died and John sustained a serious head injury. Initially, suspects included John's law partner, who was having a secret affair with Susan, and other individuals who had issued death threats against John, but they all had alibis. “48 Hours" Correspondent Troy Roberts reports. This classic "48 Hours" episode last aired on 7/20/2013. Watch all-new episodes of “48 Hours” on Saturdays, and stream on demand on Paramount+.