Mario Arnaldo Cárcamo died that day in Iquique of myocardial infarction and coronary artery disease, according to the Medical Death Certificate signed by his attending physician.

Mario Cárcamo, a militant of the Partido Comunista, was arrested on December 6, 1973, at his home in the city of Iquique by military personnel who transferred him to the Telecommunications Regiment of that city.

Subsequently, along with seventy other detainees, he was transferred to the Pisagua Prisoner Camp where, according to eyewitness testimony, he was repeatedly tortured and interrogated regarding weapons. He was kicked in the back, subjected to electric shocks to his genitals, and forced to walk on his toes and elbows while his tormentors jumped on his back.

A Consejo de Guerra sentenced him to internal exile in the town of Victoria. However, due to his deteriorated state of health, he was exiled to La Tirana instead. Upon the conclusion of his exile, he returned to Iquique. He was never able to recover his physical and mental health, which continued to worsen until he passed away in December 1977.

Considering the evidence gathered and the investigation conducted by this Corporation, the Superior Council concluded that the illness that caused the death of Mario Arnaldo Cárcamo was a result of the torture he received during his period of detention by State agents. By virtue of this, he was declared a victim of human rights violations.