CHICAGO -- There is new, very violent video inside the firefights that followed a police raid on one of Chicago's biggest Mexican cartel drug suppliers. The raid resulted in one of El Chapo's sons ...

One of the guns found in El Chapo's hideout has been traced to Operation Fast and Furious. The drug lord was arrested two weeks ago, months after he escaped from a Mexican prison. ABC News has learned ...

Multiple firearms seized from Joaquin "El Chapo" Guzman's compound were tied back to Arizona, sources say. Law enforcement officials said 11 firearms were sized from the compound, and of those, five ...

Mexican authorities have captured three men with strong ties to drug lord Joaquin "El Chapo" Guzman's brother.