The Kalpoe brothers were re-arrested on Friday along with another individual named Freddie, a friend of Jordan van der Sloot's. Police suspect that the brothers may have drugged and sexually assaulted Natalee (it's unclear as to whether or not Freddie was involved).
Satish, 18, and Deepak Kalpoe, 21, were arrested along with van der Sloot (now 18) but the two brothers were released in July after a judge ruled there wasn't enough evidence to connect them to Holloway's disappearance.
Nancy Grace said that there were rumors about use of the date rape drug Rohypnol, otherwise known as "roofies." She suggested last night that the boys' conversations could have been taped because the police now have new facts and evidence to justify the re-arrest. Grace also mentioned that Joran van der Sloot has now officially presented 23 different versions of what happened that evening!
Hopefully, this turn of events will shed some light on a puzzle that had been looking quite insoluble.