August 10 was, for many in Mexico, a quiet Sunday like any other. But in Sinaloa—a northwestern state facing the Pacific—it was no ordinary Sunday. That day, 17 homicides were committed: one every 85 minutes.

Ismael "El Mayo" Zambada is accused of ordering torture, plotting murders and flooding the U.S. with cocaine, heroin and other illicit drugs.

Ismael Zambada García, known as El Mayo, was accused of running a murderous operation that ran drugs like cocaine, heroin and methamphetamine across the U.S.-Mexico border.