( CNN ) -- Nearly six years after he escaped from prison , one of the U.S . Marshals Service 's 15 Most Wanted fugitives has been extradited from Mexico and returned to that same prison , according to the federal agency . Convicted child killer Edward Salas was serving time for murder when he escaped from the Curry County Detention Center in Clovis , New Mexico , in 2008 . At the time of his escape , Salas was serving a life sentence plus 56 years for his role in the murder of a 10-year-old boy , the Marshals Service said in a press release issued Saturday . Mexican authorities arrested Salas in October 2012 on a U.S. provisional arrest request . The Marshals Service worked closely with the Curry County District Attorney 's office , Mexican authorities and the Department of Justice 's Office of International Affairs , which resulted in Salas ' return to Curry County on Saturday , according to the release . In 2005 Salas , with two of his brothers and two other people , planned to murder a teen named Ruben Perez in his home , reportedly in retaliation for an argument at Clovis High School . Instead , they killed the teen 's brother , Carlos Perez , who was sleeping in the same bedroom . Carlos Perez died the day before his 11th birthday , the Marshals Service said .
Edward Salas was convicted for his role in the 2005 murder of a 10-year-old in New Mexico . He was serving a life sentence plus 56 years when he escaped , Marshal 's Service says . Salas has been returned to the Curry County Detention Center .