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
Mario Uribe Escobar November 15, 2012. He spent 54 months in jail. Mario Uribe Escobar Mario de Jesús Uribe Escobar (born 1949) is a Colombian politician and lawyer. Uribe-Escobar graduated in Law from the Autonomous University of Medellín and the University of Antioquia. He began his political career as councilman of his hometown; the municipality of Andes, Department of Antioquia. Between 1982 and 1986 served as deputy of the Department Assembly of Antioquia and then to the Chamber of Representatives of Colombia in representation of Antioquia, serving from 1986 to 1994, in which he was Vice President of the Chamber between 1990 and