his name was david marshburn.w kelli but had an intense interest in her case from the day she disappeared. >> she was in the military. you just don't up and disappear. she was a young female. that's not right. >> he is both a bounty hunter and private investigator. his specialty, finding people, dead or alive. >> i knew she wasn't alive. i knew she needed to be found. >> she seemed like a really nice -- >> remember that tv interview nick holbert did? marshburn saw it too. >> when i'm watching him it's like, dude, i can tell you're lying, he did it, he knows where she's at, he killed her. >> and marshburn was also convinced he could find kelli bordeaux. operating on his own time and own dime, marshburn started carefully researching the details of kelli's disappearance. >> i don't know what got into me to do it. i mean i just did it. >> to bring some answers to her family. >> yeah, i love doing it. i love helping a family out. >> marshburn was convinced holbert had buried kelli close to the froggy bottoms bar somewh

his name was david marshburn.t had an intense interest in her case the day she disappeared. >> she was in the military and you don't just up and disappear. she was a young female. that's not right. >> marshburn is both a bounty hunter and private investigator. his specialty, finding people, dead or alive. >> i knew she wasn't alive. i knew she needed to be found. >> remember that tv interview nick holbert did? marshburn saw it, too. >> when i'm watching him it's like dude, i can tell you're lying. he did it. he killed her. >> and marshburn was also convinced he could find kelli bordeaux. operating on his own time and own dime, marshburn started carefully researching the details of kelli's disappearance. >> i don't know what got into me to do it. i mean i just did it. >> to bring some answers to her family. >> yeah, i love doing it. i love helping a family out. >> marshburn was convinced holbert had buried kelli close to the froggy bottoms bar somewhere in the thick forest surrounding fayetteville. >> how daunting