The Underworld Podcast

When Mexican special forces killed El Mencho in February 2026, the throne of Mexico's most powerful cartel was up for grabs. But there's one man who many assumed would be taking over: Juan Carlos Valencia González, a 41-year-old California-born dual citizen known as "El 03," the stepson of the slain narco boss.

His cartel royalty bloodline is almost absurdly stacked, as his mother, Rosalinda González Valencia, dubbed "La Jefa," was El Mencho's wife and a key financial architect of the cartel's money laundering empire, while his uncles from the González Valencia clan were systematically arrested and extradited to the U.S. over the past decade. And his father just happened to be the founder of CJNG's predecessor, the Milenio Cartel.

Now an American citizen effectively runs a terrorist-designated drug empire responsible for flooding the U.S. with fentanyl, creating a legal nightmare for U.S. intelligence agencies with limited tools to go after one of their own.
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When Paraguay extradited French-Corsican heroin kingpin Auguste Ricord to the US in 1972, some thought Paraguay’s narco trafficking days might be numbered. If anything they were just beginning. Within years the tiny nation had welcomed Hong Kong Triads and Lebanese militants — who, combined with considerable homegrown narco and cigarette trafficking, made Paraguay one of the world’s most lawless places, a hive of narco-contraband-terror madness.

This nexus was focused not on the country’s sleepy capital city Asunción, but the so-called “Triple Frontier”, where Paraguay, Argentina and Brazil met. And thanks to a 2018 conspiracy involving a local trafficker, a money mule and an up-and-coming senator, we know it’s very much alive and kicking today.
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The French Connection and Paraguay

In 1968, a gang of smartly-dressed gangsters robbed a bank in Buenos Aires. The fallout from the raid would lead authorities in all kinds of crazy directions — from French paramilitary hitmen to mobsters belonging to the feared Union Corse, Corsican dope traffickers who’d perfected “French Connection” routes from Southeast Asia and Turkey into Marseille, then onto New York to feed a ballooning American addiction crisis.

Amid the chaos, one Frenchman fled Argentina to neighboring Paraguay. There he discovered a smuggler’s paradise, full of Nazis and narcos, whose reliance on drugs and contraband would grow so huge that US drug squads would refer not only to the French Connection, but to one named for Paraguay’s repressive, half-German dictator: The Stroessner Connection. He and the fugitive French mafioso would form a bond that, in many ways, has outlived both of them to today.
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In 1960s Boston, Buddy McLean ignited a savage gang war after tensions with the McLaughlin brothers boiled over into open bloodshed. What started as neighborhood beef turned into a cycle of ambushes, barroom executions, and street hits that terrorized Boston. McLean’s Winter Hill crew proved more organized and ruthless, picking off rivals and seizing control as bodies piled up. By the end, the McLaughlins were shattered, and the war set the stage for the rise of Whitey Bulger and the modern Boston mob.
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When fleets of young Chinese men arrived in the tiny, Pacific nation of Palau in 2018, authorities wondered why they’d eschewed the archipelago’s pristine shores and coral reefs for a handful of tumbledown buildings on the edge of Koror, its biggest town.

It wouldn’t take long for the story to unfold. These men were the foot soldiers in a new crime wave hitting Palau: digital scammers at the sharp end of a trillion-dollar empire run by the world’s richest gangster, and orchestrated by one of China’s most infamous Triad kingpins. As Palauan cops dismantled the operation, they discovered it had more than a little to do with their nation’s recognition of Taiwan — and Beijing’s attempt to use organized crime to bring Asia’s states to heel.
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