The gang,which was formed in U.S.prisons, works in league with the Azteca band in Juarez, which is affiliated with the Juarez drug smuggling cartel headed by Vicente Carillo Fuentes.
VOA: standard.2010.04.01
Vargas Cardona, alias "Sebastian, " is the leader of a group called the Oficina de Envigado, once affiliated with the kingpin Escobar and now a drug trafficking organization in its own right.
Investigators concluded that the women had been fully vetted by Colombian officials and U.S. investigators, who confirmed they were not part of a human trafficking network or affiliated with Colombian guerillas or other terrorist or drug-trafficking groups, according to the report.