over the years, joran van der sloot has changed his story many times about what happened to natalee holloway or where her body may be. for instance, he told a dutch television station he dumped her body in this swamp, but in the end, it turned out to be just more talk. van der sloot, a young man with a privileged background, continues to baffle investigators. >> joran felt throughout that he was kind of untouchable, that they weren't really going to get him. his father was coaching him how to respond and what to say. >> joran's father, paulis, who's a prominent lawyer on the fast track to becoming a judge, but just last year, he unexpectedly died of a heart attack, leaving joran on his own. >> his father appeared to be his adviser. many people believe his father went to his grave knowing exactly what happened to natalee holloway.