677 Calle Garcia Herrero is a rented house in Colonia El Cerezal where the bodies of Estefania Rivas and Herminia Noriega were discovered in December 1996. Its significance lies in the collision between a specific crime scene and a city’s compromised systems of investigation: clues led toward a tenant, a black car, and suspects connected to organized crime, but the address never yielded a definitive account of who had used it or who killed the sisters.

The House and the Disappearance

The sisters were fifteen and thirteen. Their mother and Herminia’s father worked at maquiladoras, and the girls were still attending school. On the morning they disappeared, the four sisters were walking toward school when a car stopped beside them. A man pushed Estefania into it, then returned and forced Herminia inside before the car drove away. The two younger girls went home and, finding no one there, sought help from a neighbor.

The neighbor tried to contact the girls’ parents through the factory where they worked. Her calls met workplace restrictions and delay: she was told personal calls were forbidden, and a later call ended when she ran out of coins. The account places the kidnapping within the sisters’ ordinary school route and their family’s dependence on factory work, while showing how little immediate help their neighbors could secure.

Discovery and Police Entry

Four days after the kidnapping, an anonymous caller reported gunshots inside the house. The first responding officers received no answer at the door. Neighbors gave inconsistent descriptions of who lived there; one mentioned a black Peregrino outside. Although the officers suspected the house might be connected to drug traffickers and initially hesitated to intervene, Inspector Juan de Dios Martinez arrived with Lino Rivera and ordered the door forced open rather than waiting for more inspectors.

Inside, Martinez and Rivera found the sisters dead in separate rooms. Martinez kept Rivera and other officers from entering the rooms and called for the medical examiner. The subsequent examination established that both girls had been abused and tortured. Estefania had been shot; Herminia’s death was attributed to a heart attack after the abuse, rather than to the bullet found in her head. The discovery transformed the house from an uncertain address into a crime scene, but the investigators still faced a basic obstacle: the neighborhood could not provide a consistent account of its occupants.

Tenant, Ownership, and Suspect Leads

The house belonged to an older woman who owned nearby rental properties. Her grandson’s real-estate company managed them, and its records identified the tenant at 677 as Javier Ramos, who had paid monthly expenses through a bank. Bank inquiries revealed substantial deposits sufficient to cover six months of rent, electricity, and hot water; Ramos had not been seen since. The tidy payment trail established a formal tenancy but did not explain who had used the house or why the tenant had disappeared.

Property records widened the inquiry beyond the immediate occupants. Martinez found that Pedro Rengifo owned houses on the next block, while the properties on parallel Calle Tablada belonged to Lorenzo Juan Hinojosa, a front man for drug trafficker Estanislao Campuzano. Nearby buildings were registered to the mayor or his children, and others to Pablo Negrete, the rector of the University of Santa Teresa. These connections prompted questions about whether powerful local interests were implicated, but the ownership information did not itself prove responsibility for the murders.

In January 1997, police arrested five members of the Los Bisontes gang, accusing them of several murders committed after Klaus Haas had been caught. One of the arrested men, Carlos Camilo Alonso, was said to have rented the house on Calle Garcia Herrero. That assertion supplied a lead connecting an alleged gang member to the address, but the evidence remained contested: in a lineup, only two of ten residents recognized Alonso as the tenant. Witnesses also offered accounts of a black Peregrino and a possible murder weapon, while the arrested men’s alleged involvement in the killings was presented as an accusation, not a conclusive resolution of who had occupied 677 or committed the crimes.

What the Address Reveals

The investigation at 677 moves between intimate and structural scales. The rooms and the sisters’ belongings make the house a particular site of violence; rent records, property registrations, and suspected criminal connections place it within a wider network of ownership and influence. Yet each documentary lead stops short of certainty. Neighbors disagree about the occupants, the recorded tenant is absent, and the later identification of Alonso is supported by only a minority of those asked.

The address therefore concentrates a recurring problem in the Santa Teresa murders: a body can be found and examined, and a house can be entered into the investigative record, without the resulting facts producing accountability. The house yields names, payments, and possible connections, but not a settled account of the sisters’ killers. Its importance is not that it solves the case; it shows how a specific location can become legible to police in fragments while the responsibility those fragments might establish remains unresolved.