 The Mexican army was deployed on November 22, in the streets of Culeacan after the National Guard captured Néstor Isidro Perez-Salas, or El Nini, who was accused of heading security for the faction of the Sinaloa cartel headed by the sons of founder Joaquín El Chapo Guzmán, seen by US anti-narcotics agents as one of the most ruthless Mexican drug figures. Perez-Salas was detained in Culeacan, the Sinaloa cartel's heartlands, and was taken to Mexico City, according to government detention. Records.he is accused by the US State Department of working under Ivan Arcavaldo Guzmán to lead the Ninis, a violent group of security personnel for the Guzmán brothers, also known as Los Chapitos. US courts have indicted Perez-Salas on a slew of charges in relation to his alleged role at the helm of the Chapitos security apparatus, including cocaine and methamphetamine trafficking conspiracy, possession of machine guns and witness retaliation.