Legend has it that `` El Chapo '' Guzman was also once arrested in Mexico 's capital , according to an account in Malcolm Beith 's book `` The Last Narco : Inside the Hunt for El Chapo , the World 's Most Wanted Drug Lord . '' During raid , Joaquin `` El Chapo '' Guzman had an AK-47 next to his bed . Comment: Official : Investigators used infrared scanners to pinpoint Guzman 's location . Wiretaps and informants helped authorities to close in .
During raid , Joaquin `` El Chapo '' Guzman had an AK-47 next to his bed . Comment: Official : Investigators used infrared scanners to pinpoint Guzman 's location . Wiretaps and informants helped authorities to close in .