Guns seized in the arrest of an alleged member Los Zetas in 2011. (Ronaldo Schemidt/AFP/Getty Images)

In March 2011, gunmen from the Zetas drug cartel descended on the small town of Allende, an hour from the US border, killing dozens, possibly hundreds of people — many of whom had no connection to the cartel — and destroying their homes and businesses. Seven years later, the town still has more questions than answers.

Poor management of confidential information about cartel leaders Miguel Ángel and Omar Treviño had caused a retaliation against their perceived informants that was swift and severe. Allende is a town so thoroughly infiltrated by the powerful cartel, there was little leadership or resistance to the violence. For ProPublica, Ginger Thompson interviews to victims’ families, the informers, and DEA agents in an important, difficult to read investigation.

Officers under my command responded to reports of a fire at one of the Garza ranches. We’re talking about less than three kilometers away from Allende. It appeared that the Garza family was having some kind of gathering. Among the first responders was a group of firefighters with a backup engine. They noticed there were certain people connected to criminal organizations, who told them, in vulgar terms and at gunpoint, to withdraw. They said there were going to be numerous incidents. We were going to get numerous emergency calls about gunshots, fires and things like that. They told us we were not authorized to respond.

In my capacity as fire chief, what I did was to advise my boss, who in this case was the mayor. I told him that we were facing an impossible situation and that the only thing we could do was to stand down, out of fear of the threats we faced. There were too many armed men. We were afraid for our lives. We couldn’t fight bullets with water.

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