Javier F. Peña (born 1958) is an American retired Drug Enforcement Administration (DEA) agent who investigated Pablo Escobar and the Medellín Cartel with his former colleague Stephen Murphy and the Colombia National Police. Peña worked as a consultant on the Netflix series Narcos. Peña was not involved in the DEA's Cali Cartel activities; his involvement in the investigation in season three of the Netflix series is a fictional account. Following the investigation of the Medellín Cartel, Peña worked for the DEA with additional assignments in Puerto Rico, Texas and Colombia. Peña retired from the DEA in 2014.Peña graduated from Hebbronville High School (Class of 74) and was raised in Hebbronville, Texas, and attended Texas A&I University (now Texas A&M University-Kingsville) where he studied sociology and psychology. Peña served as a Deputy Sheriff for Webb County Sheriff’s Office in Laredo from 1976 to 1984 and then continued his service with the DEA until his retirement in January 2014.