The recent death of Nemesio Oseguera Cervantes, known as 'El Mencho', has created a power vacuum within the Jalisco New Generation Cartel (CJNG), one of Mexico's most formidable criminal organizations. Reports suggest that Juan Carlos Valencia González, the stepson of 'El Mencho' through his marriage to Rosalinda González Valencia, has stepped into the leadership role. According to The Wall Street Journal, Valencia Gonzalez is regarded as possessing the internal legitimacy necessary to facilitate a smooth transition at the helm of the cartel, thereby minimizing the risk of fragmentation that could arise from internal rivalries or struggles for power.

The anticipated transition comes at a time when leadership struggles within cartels can lead to significant increases in violence. Notably, 'El Mencho's' biological son, Rubén Oseguera González, who would typically be the next in line for leadership, is currently serving a life sentence in a US prison, complicating the succession process. Valencia González's leadership may provide a more stable interim leadership during a critical junction for the CJNG.

The dynamics of cartel leadership are complex and can change rapidly, particularly following the death of a significant figure like 'El Mencho'. The decision by high-ranking lieutenants within the cartel to support Valencia González's ascension reflects a consensus that aims to maintain stability and prevent infighting, a common catalyst for chaos within criminal networks. However, the situation remains fluid, and the effectiveness of this new leadership will be closely monitored by law enforcement and rival organizations alike, both in Mexico and the United States.