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
Pablo Escobar Cay about southeast of the Florida coast. According to his brother, Escobar did not purchase Norman's Cay; it was, instead, a sole venture of Lehder's. Escobar and Robert Vesco purchased most of the land on the island, which included a airstrip, a harbor, a hotel, houses, boats, and aircraft, and they built a refrigerated warehouse to store the cocaine. From 1978 to 1982, this was used as a central smuggling route for the Medellín Cartel. With the enormous profits generated by this route, Escobar was soon able to purchase of land in Antioquia for several million dollars, on which he