reward for information on his whereabouts. López, a 77-year-old retired mason with Parkinson's disease, was initially thought to have suffered post-traumatic stress disorder after re-living his ordeal during the trial, or chosen to hide after being threatened. But, after a few days, the theory that he had been kidnapped gained support among the authorities. Buenos Aires Governor Felipe Solá stated that López "could be the first desaparecido since the years of state terrorism", and that this could be intended "to intimidate future witnesses or block their participation in other trials". President Néstor Kirchner warned, "The past is not defeated... [But] we cannot go back to that past". Human and civil rights organizations allege that active and retired provincial police personnel took part in the kidnapping of López, to intimidate other witnesses and impede future trials. On 6 October 2006, a demonstration of tens of thousands at the Plaza de Mayo, demanded López be found. Suspicions about the cause of López's disappearance were strengthened in 2014, when Etchecolatz and 14 others were convicted in a trial addressing crimes committed at the 'La Cacha' clandestine detention centre, the place where, among others, Laura Carlotto, the daughter of the head of the Grandmothers of the Plaza de Mayo, Estela de Carlotto, was held. As the judge handed down sentences, Etchecolatz took a piece of paper and wrote on it: "Jorge Julio López." The moment was captured by photographers and when the images were inspected, the other side of the piece of paper could also be read. It said the missing person's name, again, along with the addition of one other word: "Kidnap." Threats to judges On 27 September 2006, judge Carlos Rozanski, president of the court that sentenced Etchecolatz, confirmed he received a long letter that claimed judges were being pressured by the national government and denounced those who "from the offices of power do not look for justice but for revenge against those who defended the Nation." The letter was signed by the self-styled Third International Congress of Victims of Terrorism – Barcelona – Spain. The official Third International Congress of Terror Victims, denied any involvement. Three trial judges also received threatening telephone calls. The same letter was received by Santa Fe federal judge Reinaldo Rodríguez and by several federal prosecutors. The text was "well-written" and correctly addressed, and contained covert threats, pointing out that the senders "are bound, as citizens, to