César Roque Mémola Hormazábal died that day at 1:16 a.m. at Posta Nº 3 in Santiago from a thoracic gunshot wound, as recorded in the Medical Death Certificate from the Legal Medical Institute.

According to eyewitness accounts, on December 30, 1983, near midnight, while César Mémola was with a group of friends at Plaza Brasil, two Carabineros officers from the Third Precinct arrived at the scene carrying their service weapons.

Without provocation, they forced the group to lie on the ground with their hands behind their necks. Mémola Hormazábal attempted to speak with them, but he was struck by one of the carabineros and, while trying to avoid the blows, he was shot twice in the back.

In the judicial proceedings initiated at the Second Military Prosecutor's Office of Santiago, it was definitively established that the responsible carabineros officer was the perpetrator of the crime of unnecessary violence resulting in death, and he was sentenced to three years in prison.

Considering the evidence gathered in the investigation conducted by this Corporation, the Superior Council declared César Roque Mémola Hormazábal a victim of human rights violations committed by State agents who made irrational use of force.