on Tuesday that van der Sloot says in the interview that he dumped Holloway 's body `` in a swamp on the north end of the island . '' `` He was very unspecific , '' Blanken said . Blanken said RTL contacted him about the interview last summer , and the station showed the interview to him to get his reaction . He said his office and Aruban police investigated . `` We tried to verify it , '' Blanken said . `` It could n't be true . We talked with several witnesses and reviewed several facts . The story is unbelievable and not true , in my opinion . '' He said his office told van der Sloot `` we 'd like him to come in and speak with us about it . He failed to respond . '' Asked why van der Sloot gave the interview , Blanken said , `` You should ask him . Maybe he wanted to be on camera or make some money . '' Holloway was 18 when last seen in the early hours of May 30 , 2005 , leaving an Oranjestad , Aruba , nightclub with van der Sloot
-LRB- CNN -RRB- -- A Dutch man once considered a suspect in the 2005 disappearance of Alabama teenager Natalee Holloway has told a television station he dumped her body in a swamp , Aruba 's chief prosecutor told CNN . However , Joran van der Sloot 's claims to Dutch station RTL-5 are `` unbelievable , '' prosecutor Peter Blanken said . RTL-5 said Tuesday it had `` acquired exclusive material containing a statement by Joran van der Sloot '' regarding Holloway 's disappearance . `` This material was first offered to us in 2009 , '' Remko van Westerloo , the station 's director of programming , said in a statement . `` Obviously , our initial response was skeptical , '' van Westerloo said . `` However , we did feel that this interview required thorough research . We 've spoken to a variety of experts and several critics . These findings resulted in a TV special which will air this Sunday . It 's up to the viewers to form their own opinions on the matter . '' The statement did not divulge the contents of van der Sloot 's interview . However , Blanken told CNN