Luis Alberto Collío Collío died that day at 18:10 hours, at the intersection of Sara Gajardo and Hipólito Salas streets, due to abdominal-thoracic trauma caused by a bullet and acute anemia, as recorded in the Medical Death Certificate from the Legal Medical Institute.

According to the accounts of family members and records from the judicial proceedings, Luis Collío was traveling that day on a tricycle, together with his brother and a friend. Under these circumstances, they were intercepted by a Carabineros patrol from the 26th Precinct, which caused them to flee.

Collío Collío was struck by shots fired by the police officers. That night, the family home, located in the Quinta Normal commune, was raided by carabineros who were looking for the brother who had escaped.

A case was opened in the Third Military Prosecutor's Office of Santiago, which was dismissed on the grounds that the existence of the crime of unnecessary violence could not be proven.

Considering the evidence gathered and the investigation carried out by this Corporation, the Superior Council declared Luis Alberto Collío Collío a victim of human rights violations by State agents who made unnecessary use of force, as they should have employed other