​Eduardo Umaña was the first lawyer who work with the will of truth with the families of the missing persons of the Palace of Justice Siege. On April 1995, he was murdered on his office by a woman and two men who entered to his office. His secretary was tied while the crime was committed. She declared that these persons had visited the advocate one week before. His wife, son, secretary and two students that were making the internships in his office, had to exit the country on exiled because of violent threats.