Antonio Oseguera Cervantes, the brother of Nemesio Rubén Oseguera Cervantes—known as “El Mencho”—pleads guilty in the United States to federal drug charges, according to federal prosecutors. Prosecutors say Antonio Oseguera Cervantes participated in a conspiracy to traffic cocaine and methamphetamine into the U.S. CBS News and The Independent both report that the case involves his work alongside his brother, who led a major Mexican cartel. The Independent adds that the brother’s alleged role relates to “one of Mexico’s most powerful and violent drug cartels.”

Both outlets state that “El Mencho” is killed by Mexican forces. The Independent specifies the killing occurred in February, following an operation by the Mexican army. The reports focus on Antonio Oseguera Cervantes’s guilty plea in U.S. court and the government’s claim that he acted in coordination with his brother’s cartel leadership to move illicit drugs across the border.