Santa Muerte. Holy Death. To outsiders, she's become a symbol of cartel driven violence in Mexico—a "narco-saint," worshiped only by traffickers, and venerated at crime scenes. To her followers, she's a protector with roots stretching back to the pre-Hispanic past.

Dr. Jessie Marroquín joins us to explore the complex history of the saint, now one of the fastest growing religious movements in Mexico and the Southwestern U.S.