Colombian conflict dialogue, but President Barco sent an ultimatum to the guerrillas and demanded that they immediately disarm or face military retaliation. Regional guerrilla and Army skirmishes created a situation where each violation of the ceasefire rendered it null in each location, until it was rendered practically nonexistent. By 1990, at least 2,500 members of the FARC-founded Patriotic Union had been murdered, according to historian Daniel Pecáut, leading up to that year's assassination of presidential candidate Bernardo Jaramillo Ossa. The Colombian government initially blamed drug lord Pablo Escobar for the murder but journalist Steven Dudley argues that many in the UP pointed
Arturo Escobar (anthropologist) Colombia’s Pacific rainforest region called the "Proceso de Comunidades Negras" (PCN). Arturo Escobar (anthropologist) Arturo Escobar (born 1952) is a Colombian-American anthropologist and the Kenan Distinguished Professor of Anthropology at the University of North Carolina at Chapel Hill, USA. His academic research interests include political ecology, anthropology of development, social movements, anti-globalization movements, and postdevelopment theory. Escobar was born in Manizales, Colombia. He currently holds Colombian and American citizenship and publishes in both English and Spanish. He received a Bachelor of Science in chemical engineering in 1975 from the University of Valle in Cali, Colombia, and completed one year of