Amazon's four-part docuseries The Last Narc is now available on the streaming service, for which director Tiller Russell took great risks in telling the story of the most notorious murder in the history of the DEA — the 1985 kidnapping and murder of DEA Agent Enrique “Kiki” Camarena. The Last Narc follows Hector Berrellez, a highly decorated special agent who was assigned to lead the DEA’s investigation of Camarena’s murder. With the help of several corrupt cops who once served as bodyguards to Mexico's legendary drug lords, Hector digs deep to uncover the frightening truth about …