An undercover officer known only as "UCO Joe" infiltrated a circle of Canadian drug smugglers in 2013.

Eventually, the clues led "Joe" all the way to Mexico and Joaquín “El Chapo” Guzman, who in July 2019 would be sentenced to life by a Brooklyn judge for running a $14 billion empire, in the process becoming one of the world’s most notorious drug kingpins.

The RCMP noticed, too, that Canadians who entered El Chapo’s orbit kept ending up dead.

Brian Fitzpatrick wrote about the RCMP investigation for the National Post. He joins guest host Emily Jackson.

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