Marisol Macías Marisol Macías Marisol Macías Castañeda, also appearing as Maria Elizabeth Macías Castro in media reports and known for her online name "NenaDLaredo" or "La Nena De Laredo," (1972? – 24 September 2011), was a Mexican editor-in-chief for Primera Hora in Nuevo Laredo, Tamaulipas, Mexico and posted information about drug activities online. Macías was secretly reporting using the internet site Nuevo Laredo en Vivo, or Nuevo Laredo Live, about drug cartels in her city. Los Zetas murdered her in a publicly visible and brutal slaying with a note near her body as a warning to others. Her murder is the first
Pedro Oliverio Guerrero Bloque in the Guaviare department. As such, he got involved in drug trafficking and soon got involved in many violent vendettas over the control of territory and drug trafficking routes. He survived the war for the control of the department of Casanare between the Bloque Centauros and the paramilitary group of Héctor Germán Buitrago ("aka" Martín Llanos), and then was blamed as the author of the death of his own boss, Miguel Arroyave by Salvatore Mancuso, who declared Guerrero a military target. Following the death of Arroyave, Guerrero became one of the leaders of the divided factions of Bloque Centauros.