In a significant turn of events, a mistress of the drug lord Nemesio 'El Mencho' Oseguera inadvertently guided Mexican authorities to him, leading to his subsequent death and igniting a wave of violence across the country as the cartel retaliated. Military intelligence, as stated by Defense Minister General Ricardo Treviño Trejo, monitored one of Oseguera's girlfriends, relying on a combination of intelligence, including support from U.S. agencies. This led to the identification of a trusted associate of the mistress, who brought authorities to a meeting spot in the vacation town of Tapalpa, in Jalisco state.

During this urgent undercover operation, the authorities managed to locate Oseguera at a residence where he had gathered with his close security entourage. Following the intelligence-gathering phase, a tactical plan for his apprehension was strategized immediately on the same day. However, as conflicts arose during the operation, Oseguera and his cartel core members fled into a wooded area nearby Tapalpa, resulting in armed confrontations with security forces, showcasing the challenges and dangers faced by the authorities in combating armed drug cartels in the region.

This incident underlines the fragile state of security in Mexico, where the dynamics between law enforcement and drug cartels lead to violent confrontations. The death of El Mencho could potentially destabilize the cartel's operations, but it may also trigger further retaliatory violence, creating a precarious environment amidst ongoing narcotrafficking issues and illustrating the complexities of effectively tackling organized crime in the country.