There were extraordinary scenes in New York this week when the Brooklyn Bridge was closed to all traffic apart from a motorcade of heavily-armored cars. They were taking Joaquín "El Chapo" Guzmán to court. For the US authorities, this moment was a long time coming. And they had every reason to expect trouble. El Chapo - the infamous Mexican drug lord - is one of the most brutal, feared and powerful men in the world. He has slipped through the fingers of justice several times before. Becky Milligan tells the remarkable story of El Chapo's improbable life. The programme contains reference to some violent and distressing acts.

Producer: Phoebe Keane