Hernando, or simply Hernan, was a federal agent working for ICE under deep cover in a Salvadoran gang. The detectives at the Barn started looking for Hernan in relation to the San Marcos killings. They realized that he was an undercover agent, and began trying to help him move up the Salvadoran ladder both to help him bring down the organization and so that he could find out who was responsible for the San Marcos murders.