'On 19 October, members of the group led 26 young men – who had been beaten and tortured – to a hill on the outskirts of the town and shot them.
Berríos’s husband, Mario Arguelles, a 34-year-old member of Allende’s Socialist party, was among them. The youngest in the group, Saavedra’s brother José, was 18.'
https://www.theguardian.com/world/2023/sep/11/long-search-remains-pinochet-victims-chile-coup