[1][2] At the beginning of the period of the Military Regime, an electronic and chemical warfare laboratory was installed in the house of Michael Townley and Mariana Callejas in Lo Curro [es], located at Via Naranja 4925, Vitacura, Chile.

The government of Augusto Pinochet had given them that house – three floors, almost 1,000 square meters of building and 5,000 of land – located in the upper part of Santiago, in return for services rendered to the Dirección de Inteligencia Nacional (DINA).

[3] A voluminous concrete cube, rather ugly, with something of an orphanage, hospital, or other public building.Legally it was not theirs, as it had been acquired by then Army Major Raúl Iturriaga and a DINA lawyer who died in strange circumstances in 1976 under a false identity.

[6] This gas was probably used to murder the journalist Eugenio Lira Massi [es], who in June 1975 was found dead in circumstances not entirely clear, in the room he occupied in Paris, where he worked at the newspaper L'Humanité.

In 1990, the journalist Edwin Harrington published in the magazine Nueva Voz that Lira was murdered by the DINA as part of a plan called Operation France after the arrival in the French capital of "Bernardo Conrads Salazar, identity card No.

This changed when three agents, who did not lose their memory or declare themselves insane as their former boss Augusto Pinochet had, gave the judiciary unequivocal information about what happened with Jaccard and the two militants, Ricardo Ramírez Herrera and Héctor Velásquez Mardones.

The testimonies coincide in that the three detainees, from Buenos Aires, were taken to the La Reina barracks by "Don Jaime" (alias of Captain Germán Barriga, who committed suicide in 2005) and his agents of Dolphin Group, an elite squad that operated inside the Lautaro Brigade [es].

[10] The director of the DINA, Manuel Contreras, always stated in private and in public that Jaccard, Herrera, and Velásquez were arrested by Argentine intelligence, which had made them disappear by throwing their bodies into the Río de la Plata.

[11] But the former agents Eduardo Oyarce Riquelme, Héctor Valdebenito Araya, and Guillermo Ferrán Martínez, all prosecuted for the crimes committed in Simón Bolívar, deny that version, and confirm the passage of Jaccard and his companions through that barracks.

[9]On 23 July 2007, Judge Alejandro Madrid undertook "two resolutions that mark milestones in the trials for human rights violations" and that are related to the Andrea Project: "He affirmed that the murder of the ex-Army corporal Manuel Leyton was carried out using sarin gas, and prosecuted thirteen former DINA agents for this crime.