she used to work at loomis fargo, and she is a known acquaintance of david ghantt. fbi agents questioned campbell at her home, but she admits nothing. >> kelly said she hadn't stayed in touch with him since she left loomis. kelly said she wasn't very close to him. we had a conflicting report that said otherwise. we knew something was amiss, something was awry with kelly campbell. >>> coming up, the fbi taps the phone of campbell and chambers and realizes that david ghantt's life is in immediate danger. >> we're picking up these phone calls on how they are going to send someone out to kill him. >>> loomis fargo vault supervisor david ghantt has helped pull off the second largest cash robbery in united states history, $17 million. >> authorities have been looking for 27-year-old david scott ghantt, guard and driver here, whom the fbi now considers a suspect. >> but fbi agents are hot on the trail of ghantt's accomplices. steve chambers, his wife michelle, and kelly campbell. and they have tracked ghantt to mexico. >> he's got $30,000, which runs out quickly, because he