[8][9][10] Los Negros then worked with Edgar Valdez Villarreal's organization until his arrest on August 30, 2010, then the gang collapsed.
At around 3 a.m. on 1 August 2003, the Federal Investigations Agency (AFI) confronted a group of armed men in the streets of Nuevo Laredo.
Members of the AFI were staying at a hotel when Juan Manuel Muñoz Morales, the attorney general of the city, called for help.
According to PGR, the three gunmen that were killed were members of Los Negros, a group of hitmen under the tutelage of Joaquín Guzmán Loera (a.k.a.
[13] In addition, the government agency stated that 198 municipal police officers were to be investigated for possible connections with the Gulf Cartel; Manuel Muñoz, the attorney general who was being chased, was detained by the Mexican authorities.
[15] Following the 2004 assassination of journalist Roberto Javier Mora García from El Mañana newspaper, much of the local media was silenced over the fighting.
In 2008, Édgar Valdéz placed an ad in the local paper accusing Los Zetas of being "narco-kidnappers" and purchasing protection from state officials and the attorney general's office.
According to his own statements Valdez-Villarreal himself was the person who gave "JJ" shelter to protect him from the police, by placing him in one of his safe houses, this was because of the friendship they had.