Manhunt Underway for Escaped Mexican Drug Boss

A massive manhunt has begun in Mexico for Joaquin Guzman, one of the world's top drug traffickers.

Guzman escaped from a Mexican supermax prison on Saturday night. He fled through a hole cut in his prison cell's shower and disappeared into a mile-long tunnel complete with ventilation and lighting.

The tunnel was apparently built in the last year in the supposedly escape-proof correctional facility.

"He's been notorious for use of his tunnels. The Sinaloa cartel has a team of engineers and miners that have built over a hundred tunnels between the U.S. and Mexico," Mariana van Zeller, chief investigative correspondent for Fusion, explained.

Guzman, nicknamed "El Chapo," spent 13 years on the run after a previous prison excape.

The 58-year-old heads the Mexican drug cartel that supplies one-quarter of all the illegal drugs smuggled into the United States. Experts blame his operations for tens of thousands of deaths from overdoses and drug gang murders.

U.S. Attorney General Loretta Lynch has offered to help Mexico capture him yet again. U.S. authorities want him on multiple drug trafficking indictments.