Roberto Atzel Robles Pantoja died that day from a gunshot wound to the thorax on a public street. Notwithstanding this, the Medical Death Certificate from the Legal Medical Institute records that he died on September 12, 1973, at 18:00 hours, at the Barros Luco Hospital.

According to the statement of a surviving witness, at approximately 18:00 hours on September 11, 1973, as the curfew was beginning, the witness, Roberto Robles, and two other coworkers from the Sumar textile factory decided to return home on foot.

In that attempt, while they were walking near the Carabineros station located on Calle San Joaquín, in what was then the commune of San Miguel, Carabineros officers stationed there fired upon them without any warning, causing them to run.

Roberto Robles fell wounded, and while he was in that position, according to the witness's statement, one of the uniformed officers fired another shot at him. The Autopsy Protocol, consistent with this account, records that the gunshot wound that caused his death was "from top to bottom."

The witness also stated that Roberto Robles died at that same location, where he remained until the following day, when he saw him again and confirmed that he had signs of gunshot wounds on his body. Consistent with the witness, the Autopsy Protocol concludes that the shots Roberto Robles received were "necessarily fatal."

Considering the evidence gathered and the investigation conducted, the Superior Council, taking into account the time and place of death, reached the conviction that Roberto Atzel Robles Pantoja died as a consequence of the irrational use of force by State agents. For this reason, it declared him a victim of human rights violations.