<h1>Drug kingpin's son pleads guilty to trafficking cocaine heroin methamphetamine marijuana fentanyl into US</h1> The son of a notorious Mexican drug kingpin pleaded guilty to US drug trafficking charges, becoming the first of the kingpin's sons to enter a plea deal. The defendant and his brother allegedly ran a faction of the Sinaloa cartel, overseeing production and smuggling of cocaine, heroin, methamphetamine, marijuana and fentanyl into the United States. The operation contributed to tens of thousands of annual overdose deaths. The defendant admitted to drug trafficking, money laundering and firearms charges tied to his cartel leadership role. His father is serving a life sentence after being convicted in 2019 for leading the Sinaloa cartel over 25 years.