>> joran later claimed he was lying on the tape. >> tonight, joran van der sloot goes "on the record" and he has a horrifying shocking new story about what happened to natalee holloway. joran contacted us claiming he wanted to tell us the truth about what happened that night. >> in november 2008, i traveled to bangkok, thailand to speak to joran. during the interview he claimed he sold natalee into sex slavery. there were holes in his story. >> i saw a guy and he came and he handed me a bag and grabbed the girl by the arm and he went to the boat that he had in the water. >> did you actually see the boat drive away with natalee? and could you hear her say anything from the boat. >> i heard something from the boat but i don't know what it was. >> to prove his story was true, joran provided us with audio recordings of telephone conversations he claimed were between his father and him. >>