bambi bennett collected an inheritance worth a fortune. t when her mom thought bambi's taste for painkillers put the family farm and her boys at risk, she stepped in and took control. then mom and stepdad were brutally murdered. was this a random act of violence, or did the victims know their killer? here again is dennis murphy with "the deed." >> hurry up! hurry up! >> give me a minute. >> the horror discovered inside that farmhouse confused both the caller and the 911 operator. but what happened to charlie and diane was all too clear. she was found lying next to her bed, big charlie, sprawled on the bathroom floor. each had been shot multiple times, both by then dead for hours. the sheriff's cell phone erupted with calls about the shooting, and he rushed to the scene. not to investigate. charlie and diane were his best friends. >> they weren't just mine, they were everybody's friends. what we remember is how good they were, how kind they were, and what good people they were. >> down at her house in myrtle beach about 30 minutes from the c

without solid evidence, the horry county was forced to set bambi bennett free. refusal to testify against her boyfriend, prosecutors believed they had enough evidence to bring rick gagnon down, including a surprise witness. here's dennis murphy with more of our story, "the deed." >> rick gagnon was in a world of pain. locked up in the county jail facing two murder charges. he shared his woes with another guy in a jumpsuit, two inmates power walking together around the yard. >> we would walk around the pod, do laps. >> the jail yard buddy was named robert mullens, a petty crook who seemed strangely interested in rick's troubles. did he want to talk to you about the case? was he grilling you? >> all the time. all the time. >> but then it seemed everyone in this part of south carolina wanted to know more about this case and its two beloved victims. it took three years, but in 2008, the state was ready to try rig gagnon for the murders of charlie and diane. a camera was rolling as prosecutor fran humphries began his case. >> this is purely motive evidence that establ