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
Luis Escobar (baseball) Luis Escobar (baseball) Luis Alberto Escobar Hernandez (born May 30, 1996) is a Colombian professional baseball pitcher in the Pittsburgh Pirates organization. Escobar signed with the Pittsburgh Pirates as an international free agent in July 2013. He made his professional debut in 2014 for the DSL Pirates and spent the whole season there, posting a 2–4 record and a 4.75 ERA in 13 games started. In 2015, he played for both the GCL Pirates and the West Virginia Black Bears, pitching to a combined 2–1 record, 3.83 ERA, and a 1.13 WHIP in 13 starts, and in 2016, he returned