( CNN ) -- Convicted killer Joran van der Sloot is planning to wed a Peruvian woman in the prison where he is serving a 28-year sentence , his attorney told HLN , CNN 's sister network , on Friday . Van der Sloot , who remains the prime suspect in the 2005 disappearance of American Natalee Holloway , and his unnamed fiancÃ©e are working on completing the paperwork required for the wedding , said attorney Maximo Altez . The couple hopes to be able to marry within the next two weeks , Altez said . They reportedly met while she was visiting another inmate at Miguel Castro Castro prison in San Juan de Lurigancho . Joran van der Sloot challenges extradition to U.S. Van der Sloot , 25 , pleaded guilty to the murder of Stephany Flores , whose body was found in May 2010 in a Lima hotel room registered in the Dutchman 's name . He also has been indicted in the United States on charges related to the disappearance of Holloway . Holloway was last seen in the early hours of May 30 , 2005 , leaving an Oranjestad , Aruba , nightclub with van der Sloot and two other men , brothers Deepak and Satish Kalpoe . She was visiting the island with about 100 classmates to celebrate their graduation from Mountain Brook High School in suburban Birmingham , Alabama . Van der Sloot was arrested twice in Aruba in connection with Holloway 's disappearance , but was never charged . He has denied responsibility for her disappearance . In June 2010 , a federal grand jury in Alabama indicted him on charges of allegedly attempting to extort $ 250,000 from Holloway 's mother , Beth Holloway . Van der Sloot offered to provide what turned out to be bogus information about the whereabouts of Holloway 's remains in exchange for the money , according to the indictment . He was allegedly given $ 25,000 , which authorities say he used to travel to Peru for a poker tournament .
Joran van der Sloot plans to marry in Peruvian prison . He is serving time in 2010 death of woman at Lima hotel . Van der Sloot is prime suspect in disappearance of American Natalee Holloway .