Will the fight to succeed 'El Mencho' spark a new wave of Mexico violence?
The killing of Nemesio Oseguera, also known as "El Mencho," constituted a victory for the government of President Claudia Sheinbaum.
Experts now warn that the true challenge is whether she can contain the inevitable fighting as the CJNG enters into a war over control of one of Mexico's largest criminal groups.
Elite Mexican soldiers supported by US intelligence agencies killed Oseguera on Sunday in Tapalpa, in the western state of Jalisco, where he was wounded while trying to flee. He died while en route to the hospital.