Sources: FBI Paid Van Der Sloot $25,000 in Sting Before Peru Murder

SAN JUAN, Puerto Rico -- The FBI paid Joran van der Sloot at least $15,000 in a sting operation and delayed arresting him because they were trying to help build a murder case against him in the 5-year-old disappearance of Natalee Holloway in Aruba, two federal law enforcement officials told the Associated Press on Wednesday.

In that time, the 22-year-old Dutch national arrived in Lima, Peru, on May 14, and authorities say he has confessed to last week's killing of a 21-year-old woman in his hotel room there.

Van der Sloot claims the confession was forced.

"Joran told his mother crying Monday that he was being interrogated under reasonably barbaric conditions," Bert De Rooij said in a statement. "He said the police were trying to force him to confess."

Law enforcement officials say the investigation into Holloway's disappearance was revived about six weeks ago when Joran Van der Sloot reached out to someone close to Holloway's mother and requested $250,000 in exchange for disclosing the location of Holloway's body.

Aruba authorities have been frustrated in their efforts to prosecute Van der Sloot because they have been unable to find her remains.

The officials said that Holloway's mother, Beth Twitty, contacted law enforcement authorities in Alabama, and the FBI set a sting operation in motion targeting Van der Sloot. The agency wired $15,000 to a bank account he controlled, officials added.

Separately, private investigator Bo Dietl said in an interview that in April, shortly after Van der Sloot's father died, Van der Sloot contacted an attorney for the Holloway family, John Kelly, and offered to explain how Holloway died in exchange for $250,000 from Holloway's mother.

Dietl said that at a May 10 meeting in Aruba, Kelly offered Van der Sloot $25,000 up front, with the rest to be delivered once the body was found. According to Dietl, Van der Sloot received $10,000 in cash and $15,000 by wire transfer. There was no immediate explanation from government officials for the discrepancy in the amounts of money between their description and Dietl's.

"He said he pushed Natalee Holloway, her head hit a rock," Dietl said. He said the father was told the body was buried "near a construction site near their house." But the information proved to be false, said the private investigator.

"He's lied so much, we don't know," said Dietl, who has been working with Kelly on the Holloway case.

The U.S. government's payment to Van der Sloot was first reported by the New York Post. Law enforcement officials spoke to The Associated Press on condition of anonymity because the murder investigation in Aruba is still under way. In Birmingham, Alabama, FBI spokesman Paul Daymond and a spokeswoman for the U.S. attorney's office, Peggy Sanford, declined to comment.