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 . The Sinaloa cartel boss was captured after more than a decade on the run . Official : Investigators used infrared scanners to pinpoint Guzman 's location . Wiretaps and informants helped authorities to close in .