The massacre occurred as police moved to oust Mapuche-Huilliche farmers form lands claimed by Atanasio Burgos Villalobos.
The farmers had previously lost a lawsuit and had armed themselves, according to the police, with sticks, boiling water and a few rifles to attempt to resist eviction.
[2] Local family history tell that a ruka was burned with people inside, yet this is lacking from the reports of contemporary newspapers.
[2] The National Congress of Chile requested a report on the massacre, which was later written by police officer Julio Farías.
[3] In the incident Onofre and his servant Estanislao González had come by horse to evict Manuel Nilian from his property but encountered only women in the house.