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 October 2006, at the request of some of his relatives in order to take a DNA sample to confirm the alleged paternity of an illegitimate child and remove all doubt about the identity of the body that had been buried next to his parents for 12 years. A video of the exhumation was broadcast by RCN, angering Marroquín, who accused his uncle, Roberto Escobar, and cousin, Nicolas Escobar, of being "merchants of death" by allowing for the video to air. After Escobar's death, the ranch, zoo and citadel at Hacienda Nápoles were given by the government to low-income families under