I've always thought that the kids on the trip were not telling the whole story. Maybe they have been more forthcoming with Natalees parents and LE.
Yeah, I wondered why some of those girls didn't have more tales to tell about who Natalee might have been running around with. Male DNA was found on her toothbrush back at the hotel room that she shared with some girls, but I never heard any interest in trying to figure out whose it was. Didn't these girls get together and talk/brag about their vacation exploits?