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
Loving Pablo, Hating Escobar as a journalist; her testimonies under oath in historic criminal cases that resulted in lengthy convictions; her description of atrocities and massacres in her book and in the court; the threats that she had received from members of the Colombian Government and the paramilitary; and the brutal character assassination of the journalist in media owned by presidential families or their powerful associates, all of them documented in hundreds of pages of evidence and later erased from the Internet. According to the author's agent, Liepman AG of Zürich, the book ""Amando a Pablo, odiando a Escobar"" will be released in foreign