El Mencho killed in Mexico raid: $15 million bounty target El Mencho is dead. Mexican forces killed Nemesio Rubén Oseguera Cervantes, head of the Jalisco New Generation Cartel, in a Puerto Vallarta military raid backed by U.S. intelligence. Authorities seized rocket launchers, armored vehicles, and drones. Airports shut. Highways burned. CJNG is a major fentanyl trafficking network tied to the U.S. overdose crisis. Officials now warn of cartel retaliation and a dangerous power vacuum in Mexico.