CJNG Leader 'El Mencho' Killed: Cartel Power Vacuum Threatens U.S. Border Security

Mexican military forces killed Nemesio Oseguera Cervantes, known as 'El Mencho,' leader of the Jalisco New Generation Cartel (CJNG), which controls an estimated 60-70% of fentanyl and cocaine flowing into the United States. His death creates an immediate power vacuum in one of Mexico's largest criminal organizations, with direct consequences for border communities, drug availability, street-level violence in U.S. cities, and cartel operational patterns across both nations.