After not finding a job, Vargas García was recruited to work as a lieutenant for Los Zetas and the Gulf Cartel, a drug trafficking organization, in 2005.

[2][3] After being unemployed for at least six years, Vargas García was recruited by Osiel Cárdenas Guillén, the former leader of the drug trafficking organization known as the Gulf Cartel.

He was a pioneer in smuggling narcotics for Los Zetas through this region of southern Mexico, and was able to create a pathway for illegal goods flowing from Cancún to Matamoros, Tamaulipas in the northeastern part of the country.

[17] In fears of retaliation from organized crime, the sub attorney general of Campeche, Jorge Obrador Capellini, along with subdirector of security in the municipality, Néstor Hernández Domínguez, including four policemen, resigned from their duties several days after the arrest of Vargas García.

[18] Exactly three months after the arrest on 18 July 2007, the municipal police chief of Ciudad del Carmen, Germán Soto López, was assassinated by unknown gunmen.

The second phase of this process was known as La Contracción, when they would set up networks of radiocommunication in an area, organize safe houses, and call on gunmen to protect specific places.