We begin this week together with a big victory for the people fighting the river of illegal drugs entering the united States. It's the capture of the man called the king of the trade, Joaquin "El... See More
We begin this week together with a big victory for the people fighting the river of illegal drugs entering the united States. It's the capture of the man called the king of the trade, Joaquin "El chapo" Guzman. The brilliant ways he was streaming drugs right into American neighborhoods. Maria van Zeller from our partner network fusion has been tracking this story for years. She starts us off right now. Reporter: Joaquin "El chapo" Guzman, the alleged billionaire drug trafficker, on the run for the biggest setback to the drug trade in three decades. Once named one of the most powerful men in the world, el chapo was caught here in a simple fourth floor apartment, a single rifle by his side. Toiletries scattered across the bed. In the kitchen, food on the counter, pans on the stove. In a bedroom, a child's playpen appears to lie on the floor. Allegedly with him, his beauty queen wife and young american-born twin daughters. Mexican special forces, early Saturday, capturing one of the world's most wanted men without a struggle. Largely cripple the organization. Reporter: Guzman, nicknamed el chapo, just weeks ago at another hideout. Drug tunnels, a concept Guzman pioneered. Some cost over a million dollars to build, and they made that back in just a month carrying a river of drugs into the United States, and guns and cash back across the border to Mexico. It can get toxic if there's not oxygen in here. Very dangerous. People can die here. And it wasn't just tunnels. Guzman allegedly built 100-foot long submarines to smuggle drugs, even catapults. Watch this night-vision surveillance footage. Look closely. That's bales of drugs being hurled over the border fence, he is believed to supply more than 25% of the drugs in the U.S., more than 80% of those sold in Chicago alone. A city that named him public enemy number one, though he's never even before there. She joins us now. He's never been in Chicago, why was Chicago the center of his operation. Chicago has the fourth or fifth largest Mexican population outside of Mexico and it's also sort of the ideal distribution center for drugs to be smuggled through the midwest. The odds he'll be brought back to the cur prison system in the United States? U.s. Plans to seek his extradition, this is a big political victory for the president and one he doesn't want to give up easily. All right, Mariana, thank you for your expertise. You'll have more on fusion, our partner network. Thank you.
This transcript has been automatically generated and may not be 100% accurate.