Socos Massacre
1983 CE.
Shown on the map at -13.305°, -73.586°.
The Socos massacre, or Soccos massacre (Spanish: masacre de Socos) occurred on 13 November 1983, when a group of Sinchis of the Peruvian Civil Guard in a state of drunkenness, led by Lieutenant Luis Alberto Dávila Reátegui, killed 32 people from the town of Socos, in the Department of Ayacucho, during the Peruvian conflict.
Text from the Wikipedia article Socos massacre, licensed CC BY-SA 4.0.