Drug Warrior - The gripping memoir from the top DEA agent who captured Mexican drug lord El Chapo

His brief was to capture the DEA's deadliest target: El Chapo. For over twenty years, Riley had seen the fear and bloodshed that Joaquín 'El Chapo' Guzmán Loera and his Sinaloa Cartel had caused, whilst the availability of drugs on American streets had exploded.