Angel of Death

The Angel of Death is a category Amaia Salazar uses to make sense of a possible pattern behind apparently natural deaths: a caregiver may kill people considered vulnerable while believing the act is compassionate or socially beneficial. Its importance to the investigation lies in how it reframes infant deaths initially classified as crib deaths, while leaving open whether Fina Hidalgo actually committed them.

Definition and Characteristics

Amaia describes Angel of Death perpetrators as people who believe they are performing an important humanitarian service by killing others. They often work in medicine or care for elderly, mentally impaired, or physically ill people, and are frequently women. Their victims’ existing frailty can make a death seem unsurprising, which helps the perpetrator escape notice.

The pattern also involves a disquieting contradiction between manner and action. Such perpetrators may be unusually kind and attentive toward people who suffer, while interpreting killing as an act of pity. Because they regard their actions as legitimate and disguise them as mercy, Amaia says they rarely stop on their own. The concept therefore directs attention not only to a death’s medical appearance, but also to the caregiver’s beliefs and access to vulnerable people.

Application to the Infant Deaths

The possibility arose as Amaia examined deaths of children under two who had died in their sleep. Routine examinations had resulted in crib-death findings, which initially attracted little suspicion. Yet the behavior of some parents seemed troubling enough that social services had recommended monitoring families who had other children. The cases included Amaia’s own sister and three other girls; the investigation’s focus on girls followed the exclusion of male victims from the pattern she was considering.

That pattern did not itself establish murder, but it changed the meaning of the earlier findings. A death that could plausibly be attributed to an infant’s vulnerability might also conceal deliberate harm, particularly if a medical or caregiving figure had access to the child. The Angel of Death concept gave Amaia a framework for considering that possibility without treating the routine classifications as conclusive.

Fina Hidalgo and the Limits of the Suspicion

The suspected figure was Fina Hidalgo, a midwife. Amaia recalled that Hidalgo had said that when children were not healthy or normal, families sometimes had to be helped to rid themselves of the burden of raising them. To Amaia, this suggested a belief that killing could be justified as help. The conversation was significant, but Amaia acknowledged that no one else had heard it.

At this stage, she could not confirm that Hidalgo had been present in the cases she suspected. She said she would need an order to inspect the doctor’s private files and death records before she could be certain. The distinction matters: the recorded suspicion arises from a troubling statement and a developing pattern, not from proof that Hidalgo caused any particular child’s death.

Connection to the Wider Investigation

The inquiry also uncovered a secretive group active in Baztán from the late 1970s into the early 1980s. Its members had practiced animal sacrifice and discussed human sacrifice, including the sacrifice of newborns or very young children. Elena Ochoa had attended gatherings before leaving when the rituals became too violent. Amaia’s investigation connected people associated with the group and its meetings with families whose young daughters had died, and identified Hidalgo among those who sometimes attended meetings at Argi Beltz.

That context raised the possibility of overlapping forms of violence, but it did not make ritual sacrifice and the Angel of Death pattern interchangeable. The former concerned the group’s rites; the latter described a possible individual rationale for killing under the guise of care. By holding both possibilities alongside the unresolved medical records and family histories, the investigation treats apparent mercy as a claim to scrutinize rather than an explanation to accept.