>> it became apparent the evidence was not sufficient to bring her case to trial. >> didn't have the goods? >> just wasn't there. wasn't there. >> yet she's the foundation of your theory? >> there's no question about it. >> for the time being bambi was able to put horry county jail in her rear-view mirror. and with it, rick. by now bambi had cut ties with her old boyfriend. >> it sounds like she had your back, rick, and then she didn't. >> yeah. >> what happened? >> jail changes people. you know? >> rick was hoping it would be just a matter of time before he, too, would be released. the forensics they had against you, no hair, no fingerprint, no dna. >> nothing. >> but he did have charlie's blood on his shoe. to humphries, that evidence was part of a bloody trail from the crime scene that was about to lead both the prosecutor and rick gagnon into a courtroom showdown. coming up -- one of rick gagnon's fellow inmates comes forward with a damning story.