State prosecutor Miguel Angel Godinez Munoz yesterday announced the arrest of Gildardo Lopez Astudillo in a statement, and National Security Commissioner Renato Sales later confirmed the detention.
Sales called Lopez Astudillo, 36, the "intellectual author" of the students' disappearance. He was arrested in the city of Taxco and is suspected of drug, extortion and organized crime offenses.
In November, then Attorney General Jesus Murillo Karam said it was Lopez Astudillo who informed his drug gang boss, Sidronio Casarrubias Salgado, that rivals were causing trouble in the city of Iguala. Casarrubias allegedly instructed him to defend their turf.
A recent report presented by a group of independent investigators has discredited many aspects of the official inquiry, such as discounting the possibility that the bodies were burned on a giant pyre at the dump.