July 11 (UPI) -- Ovidio Guzman Lopez pleaded guilty to charges related to drug trafficking as a Sinaloa cartel leader in the U.S. District Court for Northern Illinois' Dirksen courthouse in Chicago on Friday. Lopez pleaded guilty to four charges related to drug trafficking, firearms violations and money laundering and admitted he helped manage the manufacture and smuggling of large amounts of fentanyl, heroin, cocaine, methamphetamine and marijuana into the United States, according to WLS-TV .