José Treviño Morales, an alleged money launderer of the Mexican criminal group Los Zetas and a prominent quarter horse racer in the U.S., is arrested in Lexington, Oklahoma.
Mexican Drug War: Alleged members of Los Zetas, a drug cartel originally set up by former soldiers of the Mexican Army, attack several media outlets in Monterrey for publishing on a rumored split between the two principal Zetas bosses.
The Mexican drug cartel known as Los Zetas laundered millions of dollars through accounts at Bank of America; that money was then used to finance a horse racing business in the United States, allegedly ran by José Treviño Morales.
Mexican Drug War: The dismembered remains of 7 bodies are found in the Mexican state of Sinaloa. The bodies are discovered along with a written message accusing the authorities of cooperating with the Sinaloa Cartel, suggesting that the message may have been written by Los Zetas.
A car bomb exploded in the Mexican border city of Nuevo Laredo, injuring 10 police officers during the Mexican Drug War. The attack was believed to have been carried out by Los Zetas, one of Mexico's most powerful drug trafficking organizations.
15 mutilated bodies are found inside two abandoned SUVs in the state of Jalisco, a region that is under dispute between Los Zetas and the Sinaloa Cartel. The Mexican authorities believe the massacre is a response by Los Zetas for the 2012 Nuevo Laredo massacres reportedly carried out by Joaquín Guzmán Loera (a.k.a. "El Chapo"), Mexico's most-wanted drug lord.
23 bodies—14 of them decapitated and 9 of them hanged from a bridge—are found in the Mexican city of Nuevo Laredo; those killed were reportedly members of the Gulf Cartel who were killed by Los Zetas, a rival cartel.
Three journalists are killed and their bodies dumped in plastic bags in a canal in Boca del Río in the Mexican state of Veracruz, where the rival criminal groups of Los Zetas and the Gulf Cartel are fighting for territorial control.