detectives went to froggy bottoms where they found nick holbert. as down on his luck living in the woods behind the bar. they searched his camp site and his car. not one clue. holbert also agreed to an interview at the police station where he told detectives, yes, he picked up kelli on friday, the 13th, and later dropped her off at the entrance to her apartment complex. >> since friday night, no contact with her whatsoever, you don't know where she is at? >> no. >> what do you know about her? >> nothing, really. i've known her for, what, six hours all together. >> holbert was fully cooperative. didn't duck one question. >> if you knocked her down in the car, i need to know about that. >> no, i did not. >> not even touched her? >> no. >> so they let him go. if nick holbert was a suspect, he certainly wasn't acting like one. he joined search teams looking for kelli and even spoke on local tv expressing his concern. >> she seemed like a really nice and cool person, and i mean i hate that she's missing. >> but fayetteville police weren't buying holbert'

detectives went to froggy bottoms where they found nick holbert. red he was down on his luck living in the woods behind the bar. they searched his camp site and his car. not one clue. holbert also agreed to an interview at the police station where he told detectives, yes, he picked up kelli on friday, the 13th, and later dropped her off at the entrance to her apartment complex. >> since friday night, no contact with her whatsoever, you don't know where she is at? >> no. >> what do you know about her? >> nothing, really. i've known her for, what, six hours all together. >> holbert was fully cooperative. didn't duck one question. >> if you knocked her down in the car, i need to know about that. >> no, i did not. >> not even touched her? >> no. >> so they let him go. if nick holbert was a suspect, he certainly wasn't acting like one. he joined search teams looking for kelli and even spoke on local tv expressing his concern. >> she seemed like a really nice and cool person, and i mean i hate that she's missing. >> but fayetteville police weren't buying

in may 2013 nick holbert was released from jail after being locked up on that parole violation. was thrilled because now he could deal with him face to face. so just a day after his release marshburn pulled up to the house where holbert was staying. >> i've never talked to a killer. have you? >> i work for "dateline." >> oh, yeah. i take that back. >> what were you nervous about, that he would try to hurt you or just that the stakes are high here? >> sort of like a star struck, you know what i mean? you're like, wow, it's happening. i don't fear anybody. nobody is big enough or bad enough. it's the man upstairs i'm worried about. it's not -- anybody on earth -- >> so it's more like i want to get this right. i want to solve this. >> and if you do one thing wrong, it goes to hell. >> marshburn took a deep breath and knocked on the door. >> and he answered the door, and i said, "hey, nick, i'm david marshburn, i'm a private investigator, i'm here to try to find kelli bordeaux and i think you can help me." >> his strategy was simple, trick holbert into thinking he was an ally. >> it