Colonia Mexico is a neighborhood of Santa Teresa beside El Adobe, on the American side of the border. It sits within a city whose expanding districts, industrial zones, and roads are bound to cross-border movement; in the investigation of the killings of women, it is also a place where official accounts can obscure as much as they record.

Setting and urban geography

Santa Teresa is described as an immense, rapidly growing city divided by sharp spatial contrasts. Its older center, poorer western neighborhoods, more affluent eastern districts, northern industrial areas, and southern rail lines and shantytowns do not resolve into a stable map: as the city spreads east, middle-class neighborhoods give way to slums, while industrial parks themselves become surrounded by informal settlements. Colonia Mexico lies within this changing urban fabric, near the border and its traffic routes.

The international boundary is visible at El Adobe, a settlement on American soil at the end of a long main street. A visitor reaches a brightly lit, empty lot and then the American border post. From Colonia Mexico, the border is close enough to be a practical point of orientation: investigators traveling around Santa Teresa drive through the neighborhood and can make out El Adobe nearby. The district therefore occupies a threshold between two national territories, though the surrounding roads and movements connect them rather than making the boundary a clean division.

Routes and cross-border movement

The neighborhood appears along a route through the city taken by Albert Kessler on his first independent excursion. Leaving his hotel by a back exit and taking a taxi, he circles the center, passes through Colonia Madero-Norte and Colonia Mexico, and travels almost to the border. He then doubles back through other districts before asking to see the shantytowns, the areas around the maquiladoras, and the illegal dumps. The sequence places Colonia Mexico among the connected urban districts through which an investigator must travel to encounter Santa Teresa’s wider landscape.

A later tour with police inspectors again links Colonia Mexico to the border crossing. The party visits neighborhoods near El Adobe, where the main street carries a steady stream of trucks and cars heading toward the crossing, before turning south toward other districts and the industrial outskirts. The movement of vehicles gives the border neighborhood a distinctive role in the city’s geography: it is not simply peripheral, but part of a busy route for people and goods moving between Santa Teresa and the United States.

The neighborhood in the murder investigation

Colonia Mexico also enters the case record through Lucia Dominguez Roa. Her body is found on a sidewalk in Colonia Hidalgo, but the first police report describes her as a sex worker and drug user and suggests an overdose. By the following morning, a revised statement identifies her as a waitress at a bar in Colonia Mexico and records a gunshot wound as the cause of death. She was thirty-three, separated, and living alone in a room in Colonia Mexico.

The change between reports is consequential: the account of Lucia’s occupation and the stated cause of death shift, while the location where she lived remains a concrete point of her identity. The novel presents the neighborhood not as an explanation for her death, but as part of the scant, unstable information through which the authorities make a victim legible. In the wider setting of a city where investigations repeatedly reach walls, that instability underscores how place, biography, and official classification can fail to produce reliable knowledge.