Roberto Gallardo Moreno died that day at 0:30 hours from complicated thoracic gunshot wounds, as certified by the Medical Death Certificate from the Legal Medical Institute. The Autopsy Report specifies that his body presented five bullet impacts, three of them in the back.

According to the official version, on the indicated day, a group of militants from the Movimiento de Izquierda Revolucionario (MIR) attacked military personnel inside a school located in a military housing complex on Calle Bío-Bío in Santiago, which provoked an armed confrontation that resulted in the deaths of Ejército conscript Hernán Patricio Salinas Calderón, who was performing guard duty at the location, and Roberto Gallardo, a MIR militant.

According to the statement of a qualified witness, on November 17, around 22:00 hours, a group of people carrying boxes entered the school premises. The conscripts guarding the complex helped them transport the boxes, for which they were invited to have coffee.

Later, near 24:00 hours, two of them went to the school to accept the invitation. According to the witness, minutes after his companions entered the premises, the other conscripts who remained waiting at the door heard shouts and an exchange of gunfire and saw one of them run out without his helmet. They also saw three people with their faces covered fleeing the scene while firing shots.

Due to the warning shouts and gunfire, the school was quickly surrounded by a group of soldiers who arrived at the scene; upon entering, they found the other conscript severely wounded and realized that another person still remained inside, who turned out to be Roberto Gallardo.

According to the witness, the soldiers moved toward that part of the school, shouting for him to surrender, and simultaneously he heard several shots.

That same dawn, at the home of Roberto Gallardo, his spouse, Mónica Pacheco Sánchez; his father, Alberto Recaredo Gallardo Pacheco; and his sister, Catalina Ester Gallardo Moreno, were detained by agents of the Dirección de Inteligencia Nacional (DINA).

All were taken to the Villa Grimaldi facility and, as established by the Comisión Nacional de Verdad y Reconciliación, the following day they were executed by DINA agents at the La Rinconada de Maipú estate in Santiago.

Also on that occasion, Roberto Gallardo's mother, two other of his siblings, and two of his underage nephews were detained, taken to the same place, and later released.

The cases of the deceased persons named in this account, with the exception of Roberto Gallardo, were recognized and declared victims of human rights violations by the Comisión Nacional de Verdad y Reconciliación.

Considering the evidence gathered in the investigation carried out by this Corporation, the Superior Council reached the conviction that the death of Roberto Gallardo Moreno occurred in an armed confrontation and, for that reason, declared him a victim of political violence.