The Santa Teresa murders are an ongoing series of killings of women that the novel places within the city’s expanding border landscape and its failures of investigation, public attention, and accountability. Their scale is uncertain from the beginning: one account puts the deaths at more than two hundred since 1993 or 1994, while allowing that the true total may be considerably higher. The uncertainty is not incidental. It is part of how the murders persist, accumulating across individual cases that institutions repeatedly fail to resolve.

Background and Scale

Santa Teresa appears as a city without a stable edge. Its industrial warehouses and maquiladoras stand near slums, abandoned factories, vacant lots, and unpaved streets; highways lead out toward the border, while the city’s neighborhoods spread around industrial parks and dry terrain. The critics driving through it see a place growing by the second. The city’s geography supplies no simple boundary between work, residence, transit, and sites where people can disappear.

The killings also cross the practical boundaries of the border economy. The city has factories and maquiladoras, a steady flow of workers from elsewhere, Central American migrants, and an infrastructure unable to keep pace with demographic growth. Its residents and visitors move between Santa Teresa and the United States, while merchandise from maquiladoras crosses the border in trucks belonging to powerful regional families. The murders occur within this dense system of labor and circulation, but the agencies responsible for investigating them do not produce a correspondingly coherent account.

The reported number first reaches the European critics indirectly, through a boy who says that more than two hundred women have been killed. Jean-Claude Pelletier and Manuel Espinoza initially cannot take in the figure. Espinoza later reflects that disbelief can function as a kind of exaggeration: listeners signal astonishment even while accepting what they have heard. He revises the scale upward in his own thoughts, considering totals of 250 or 300 and concluding that no one will ever know. The scene makes uncertainty itself a feature of the crisis: the number is repeated, doubted, and enlarged, yet never securely established.

Investigations and Institutional Failure

The individual cases repeatedly demonstrate how official explanations and procedures narrow what can be known. After radio reporter Isabel Urrea is murdered, the initial coverage offers competing possibilities, including robbery, an impulsive attack, or a perpetrator seeking money to reach the United States. No autopsy is conducted, at the family’s request, and the ballistic analysis is never made public; it is eventually lost while being transferred between the courts of Santa Teresa and Hermosillo. The case’s unresolved evidence becomes a concrete measure of institutional failure, not merely a gap in public knowledge.

The investigation into Emilia Mena Mena’s death likewise fails to secure its leading suspect. Her boyfriend has disappeared before police reach his family home. Relatives are detained briefly, and officers follow an address in Ciudad Guzman, but the suspect is not found. The case remains open and is soon forgotten. Five days after Emilia’s body is discovered, another woman is found on the grounds of Morelos Preparatory School, where the janitor first notices vultures over a field used by students for soccer and baseball. The next death arrives while the previous investigation is still unfinished.

The pressure of limited personnel further displaces the cases. Juan de Dios Martinez is ordered to leave the Penitent investigation and pursue armed robberies in two neighborhoods. He is told that the earlier investigation is not officially closed, but that the suspect appears to have vanished, the inquiry has stalled, and the city has too few investigators to keep officers assigned to watching churches around the clock. The decision turns an ostensibly continuing investigation into a lower priority: other demands for public security take its personnel, while the unresolved case remains nominally active.

The search for the Huntsville sheriff shows how cross-border cooperation can be permitted without becoming a substantive inquiry. The American consul and Santa Teresa’s police chief authorize a review of photographs of unidentified bodies found since November 1994, but none is identified by the sheriff’s assistant. The search produces no resolution. Meanwhile, official attention is shaped by the judgment that it is better not to stir up trouble, and the possibility that the sheriff simply disappeared into the desert is treated as plausible speculation.

Public Attention and Political Pressure

The murders move in and out of the news according to a recurring cycle. Chucho Flores tells Oscar Fate that each rise in the number of killings briefly revives reporting and public conversation; the story grows until attention subsides and people return to work. Flores compares the killings to a brutal strike, an image that links the recurring deaths to the city’s labor order while emphasizing the rhythm of interruption and normalization. His explanation is starkly answered by his own account of Santa Teresa: a wealthy and poor city of factories, drug trafficking, migration, violence, and an urban infrastructure overwhelmed by growth, with no time to become something else.

Public responses seek to interrupt that cycle but struggle to attract sustained attention. In July, after two women are killed, Women of Sonora for Democracy and Peace stages its first protests in Santa Teresa. The organization has only three members in the city, and its effort begins amid a sequence of cases that remains under investigation. By January 1996, its local branch has grown to twenty activists and supporters. At a press conference, members describe the degrading treatment of victims’ families and present letters intended for the state governor and the attorney general. The letters go unanswered. Only two local reporters attend.

The press itself is part of this uneven visibility. When Klaus Haas calls reporters to the prison in January 1996, he asks how killings can continue if the accused killer is already behind bars. He points to similarities in the ropes used in two cases and to the fact that one victim had direct contact with him. Yet a newspaper sends a novice crime reporter to cover his claims, while Sergio Gonzalez, an experienced journalist who had written about the case, stays in Mexico City to work on an article about fiction. The episode sets the continuing killings against the limits of both official explanations and editorial attention.

Suspects, Verdicts, and Continuing Uncertainty

A later press conference produces a much more forceful accusation. Klaus Haas identifies two sons of wealthy families, Antonio and Daniel Uribe, as the serial killers. He describes their family connections, business networks, and association with the narco Fabio Izquierdo, who works for Estanislao Campuzano. The accusation gives the reporters a name and a social structure to investigate: the Uribes are linked to major transport and hotel interests, while their circle includes police officers and narcos. But the force of the claim does not, in itself, settle the wider series or establish that every death belongs to one perpetrator or group.

The later trial of Klaus Haas provides a verdict but not a conclusive end to the uncertainty. In 1997, Lotte Reiter returns to Mexico alone to follow the proceedings. The trial lasts twenty days, and Haas is found guilty of four murders. His lawyer, Isabel Santolaya, tells Lotte that the trial was marred by irregularities and would probably be declared a mistrial; she promises to appeal. Lotte observes that the verdict appears not to affect Haas, who remains distant and cold. The judgment resolves four charges at the trial’s end, but the prospect of appeal and the continuing killings prevent it from serving as an answer to the larger crisis.

Narrative Significance

The murders are presented not as one self-contained crime with a settled explanation, but as an accumulating field of cases, reports, missing evidence, competing suspicions, and interrupted inquiries. The narrative moves between individual deaths and broader institutional patterns, showing how a case can be briefly prominent, then neglected, while another woman is found before the previous investigation is complete. That structure makes the failure to know—how many were killed, who was responsible, and which institutions could be trusted—part of the event’s meaning.

The border city’s rapid expansion and the murders’ intermittent visibility reinforce one another. Santa Teresa’s industries, crowded movement, poverty, and overloaded infrastructure are described alongside the institutional decisions that leave investigations understaffed or unresolved. The killings persist through that gap between the scale of the violence and the limited, episodic responses to it. When Lotte later tells Benno von Archimboldi about Klaus and the murders, the crisis has become inseparable from her family’s immediate uncertainty; the distant public catastrophe enters a private conversation without becoming any more intelligible.