Van der Sloot was charged Thursday in the United States with trying to extort $250,000 from Holloway's family in exchange for disclosing the location of her body and describing how she died.

U.S. prosecutors say $15,000 was transferred to a Dutch bank account in his name. In the Netherlands on Friday, prosecutors raided two homes in the case, seizing computers, cell phones and data-storage devices.

Holloway told ABC that only his ex-wife Beth Twitty had been told about the case by the FBI until shortly before the charges were made public.

"That was handled by the FBI and I knew nothing about it. I think the only person that was involved in this incident was Beth. The FBI indicated that only the people involved in it should know," Holloway told ABC.

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