Jalisco New Generation Cartel leader "El Mencho" was killed over the weekend during a Mexican military operation. The cartel boss has a connection to California's capital city that dates back decades.

Officials identified “El Tuli” as a top CJNG logistics and financial operator who acted as a right-hand man to "El Mencho."

Drug cartel leader Nemesio Rubén Oseguera Cervantes, commonly known as "El Mencho," was killed in a military operation on Feb. 22.

Nemesio Rubén Oseguera Cervantes — known as "El Mencho" — was the boss of one of the fastest-growing criminal networks in Mexico, notorious for trafficking fentanyl, methamphetamine and cocaine to the United States and staging brazen attacks against government officials who challenged it.

The founder of the ruthless Jalisco New Generation Cartel was killed Sunday in Mexico, authorities said, ending a criminal career that reshaped his country's underworld after humble beginnings on the streets of San Francisco.

Mexican officials said that about 80% of the recovered weapons in crime scenes were purchased in the United States and smuggled across the border.

Mexican soccer matches were postponed after the army reportedly killed drug lord "El Mencho" near the World Cup host city Guadalajara, triggering violence in the region.

Mexico's operation to capture cartel leader Nemesio Rubén Oseguera Cervantes, known as "El Mencho," ended in his death and sparked massive violence. CBS News' Karen Hua reports.