In order to stand trial for alleged extortion, the main suspect in the 2005 disappearance of US teen Natalee Holloway has been extradited to the US.
The mother of Natalee Holloway is accused of giving Joran van der Sloot, a 35-year-old Dutchman, tens of thousands of dollars in exchange for information about where their daughter's body was found.
Authorities allege that he misled her and then fled to Peru.
He was given a 28-year prison term in Peru for the murder of a young woman.
In video released by the Peruvian police on Thursday, van der Sloot was seen being moved from the prison where he had already served half of his murder sentence to an air force base in Lima.
He was given to FBI agents there, who will likely take him to Alabama in the United States.
The case of Natalee Holloway, who vanished while on a school trip to Aruba in the Caribbean, received extensive coverage in both domestic and foreign media.
The 17-year-old Dutchman Joran van der Sloot, two Surinamese brothers named Deepak and Saltish Kalpoe, and the 18-year-old were last seen leaving a nightclub and getting into a car.
After Natalee Holloway vanished, Van der Sloot and the Kalpoe brothers were detained but later released for a lack of proof.
Body of Natalee Holloway never turned up.
However, according to the prosecution, in 2010 van der Sloot allegedly demanded $25,000 (£20,000) up front and a further $225,000 after the remains were discovered before he would reveal the location of Natalee Holloway's body.
He gave Ms Holloway's attorney a location where he claimed her daughter's remains were hidden after receiving the initial $25,000 payment, and after that, he fled to Peru.
The location he provided turned up empty.
Five years to the day after Natalee Holloway vanished, Joran van der Sloot met Stephany Flores, a 21-year-old Peruvian student, at a casino in Lima. He then drove her back to his hotel room.
The next morning, Ms. Flores' body was discovered inside her room.
Van der Sloot fled to the neighboring country of Chile, where police eventually found him.
After being extradited to Peru, he admitted to killing Stephany Flores, saying that she had done so after learning of his involvement in the disappearance of Natalee Holloway.
He admitted that he had beaten, strangled, and suffocated the young Peruvian.
Van der Sloot received a 28-year sentence in 2010 for the murder of Flores, but Peruvian authorities agreed to extradite him to the US "temporarily" so he could be tried for wire fraud and extortion there.
According to the Interpol chief in the capital of Peru, "this transfer will be temporary while the procedure in the United States lasts. The Dutch national will later be sent back to Peru so that he can finish serving his prison term there.
Although Natalee Holloway's body is still missing, she was ruled legally dead by an Alabama judge in 2012.
