Ernesto Castillo murders his mother

Ernesto Luis Castillo Jimenez murders his mother, Felicidad Jimenez Jimenez, in the final recorded violent death of 1993. His confession seems at first to offer a clear account of one killing and a possible answer to other unsolved crimes, but the police cannot responsibly turn his willingness to confess into proof that he was part of the wider pattern.

The killing and confession

Felicidad, fifty, worked at the Multizone-West maquiladora and lived with Ernesto in Santa Teresa. Neighbors found her at home on December 20. Ernesto was found that same night, wandering the dark streets of Colonia Morelos, and admitted without coercion that he had killed her. When questioned about his conduct, he first said he did not know why he had acted as he had; then he said he had wanted his mother to take him seriously. The explanation does not resolve the motives of the killing so much as reveal the breakdown of an intelligible account: afterward, he became incoherent and was transferred to the city hospital.

Ernesto also said he was the Penitent, the desecrator of churches. The claim immediately made him tempting to investigators seeking an explanation for other crimes. Yet his confession to his mother’s murder and his claim about the churches remain distinct matters: the former is admitted, while the latter does not establish that he committed the other unsolved killings.

Family traces and institutional handling

A search of the house found no letters from Felicidad’s older son, who had immigrated to the United States, and no personal objects left behind by him. The only evidence of his place in the family consisted of two photographs. In one, Felicidad appears with two boys; in the older photograph, she is pictured with an infant—Ernesto, her eventual killer—and a child who would leave for the United States and never return to Santa Teresa. The photographs make family history visible in fragments, while the missing son’s absence from the home leaves little that investigators can use to reconstruct his life.

After Ernesto was released from the psychiatric hospital, he was taken to Santa Teresa prison. There he proved unusually talkative and repeatedly asked for policemen or reporters to keep him company. His readiness to speak encouraged the police to try to connect him with other unsolved murders. But Juan de Dios Martinez concluded that Ernesto was probably responsible only for his mother’s death and could not be held responsible for it in the ordinary sense, given his evident mental instability. The narrative thus separates confession from reliable attribution: a suspect’s willingness to accept a larger criminal identity is not the same as evidence that supports it.

The final death of 1993

Felicidad’s murder is identified as the last death recorded for 1993, the year in which the killings of women began to be counted in Sonora. That chronology is itself qualified: the book notes that whether the deaths were related had not yet been proved. Placing a domestic killing at the year’s endpoint does not settle the pattern; instead, it sharpens the difference between the recorded sequence and the still-unresolved question of what connects its cases.

The episode’s conclusion also turns on the gap between official confidence and investigative knowledge. Public authorities are described with an ironic assurance that they were upright and prepared for unpleasantness, while the account has just shown officers trying to make a mentally unstable, talkative prisoner answer for crimes they could not establish against him. Ernesto’s case therefore closes the year’s list without closing the larger inquiry: the murder of his mother is confessed, but the broader series remains unproven and unresolved.