it happened to be a hundred yards from the trailer park where harlan byrd had lived. >> what did you think when you saw that? >> the hair on the back of your head kind of stands up. >> coincidence? the detectives didn't think so. >> the first thing we did, we called harlan byrd in for another interview. >> you thought we've found our guy here. >> yes. >> because you had been kind of wonky about him before, right? >> yes. things looked like they had been adding up. >> harlan came back to the station, this time with an attorney. >> how do you explain the items being found so close to your grand grandma's house? i can't explain it. >> do you have any thoughts to why some of her clothing would be found? >> none. >> a half mile from your grandma's place? >> no. >> harlan was adamant he never saw chelsea at the party. he made up the story. he had nothing to do with her disappearance. >> he did appear to be nervous like this is getting serious now. i really made everything up, i had no involvement, i'll do whatever you want. >> would you be willing to take a polygraph? >> a lie detector tes