Federal prosecutors in Mexico arrested another alleged accomplice in the 1994 assassination of presidential candidate Luis Donaldo Colosio, a crime that shocked the country and remains unsolved, even though the confessed killer has been imprisoned for more than 30 years.

A federal official who requested anonymity because they were not authorized to speak publicly, confirmed Monday to The Associated Press that Jorge Antonio Sánchez Ortega was arrested in Tijuana in connection with Colosio's assassination. The official did not specify the charges against Sánchez Ortega, who is being held in a maximum-security prison in central Mexico, awaiting trial.

According to the National Registry of Detentions, the arrest took place on Saturday.

Colosio, the 1994 presidential candidate for the Instit

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