The case of Mario Aburto, confessed assassin of Luis Donaldo Colosio, will be reopened.

Written by Parriva — April 1, 2026

A federal court has ordered the reopening of the case of Mario Aburto Martínez, convicted of the assassination of Luis Donaldo Colosio.

This measure entails restarting the judicial proceedings and conducting a new analysis of the alleged torture that the defendant has repeatedly denounced. This ruling, issued by the Eighth Collegiate Court for Criminal Matters of the First Circuit, allows the case file to return to the original court, where the investigation must be reevaluated with the full participation of all parties involved.

The judicial decision departs from a previous ruling, in which Judge Paloma Xiomara González, head of the Second District Court for Criminal Matters, had denied the injunction requested by Aburto’s defense. That refusal had supported the opinion of the Attorney General’s Office (FGR), which concluded at the time that there was no evidence of torture during Aburto’s arrest or transfer to the nation’s capital—a position formally communicated to the accused in November 2023 as part of the corresponding investigation.

The court has now overturned the previous ruling due to procedural irregularities detected in the trial, specifically the omission of interested third parties who, by law, should have been summoned to participate in the proceedings.

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