The death of Nemesio Oseguera Cervantes, known as 'El Mencho', on 22 February 2026 during a Mexican army operation in Tapalpa, Jalisco, left a power vacuum at the top of one of the world's most dangerous criminal organisations. Within hours, a name began circulating in intelligence circles and among anonymous cartel sources: Juan Carlos Valencia González, alias 'O3'. An anonymous CJNG source, as reported by journalist Dom Lucre, claimed that Valencia González had already been named the cartel's new leader—a development that carries an extraordinary twist. He was born in Santa Ana, California, making him an American citizen by birth, and is now allegedly at the helm of Mexico's most feared drug trafficking organisation.
Mexican authorities had not officially confirmed the succession at the time of writing. Nonetheless, security analysts and intelligence agencies on both sides of the US-Mexico border had long identified 'O3' as the most likely heir, given his bloodline, his operational command, and his deep roots within the cartel's power structure.
