C. A. Heifner earned his MBA in economics from the University of Texas at El Paso. Feature articles about him have appeared in Bluff, Mob Candy, and the New York Times, among other publications. He is now a motivational speaker.

"A very real first-hand account of the gritty, brutal world of trafficking. Heifner's incredible journey will transport you into the pounding heart of the War on Drugs. You won't want to put this book down."-Robert Mazur, former DEA agent and author of The Infiltrator: My Secret Life Inside the Dirty Banks Behind Pablo Escobar's Medellin Cartel"Mule contains all the dread, angst, and psychological terror of a Hitchcock movie. It's a must read for people interested in the US-Mexico drug trade." -Howard Campbell, professor of anthropology and author of Drug War Zone: Frontline Dispatches from the Streets of El Paso and Juarez