The massacre occurred in Betania and was attributed to the Gulf Clan gang, which is considered by the Peace and Reconciliation Foundation (PRF) as the largest illegal armed group in the country.
Armed men murdered 23-year-old Jonathan Acevedo, his mother Maria Londoño, and his step-father Juan Zapata.
Cauca's Social and Rural Workers Organizations Network (Redosc) reported the assassination of rural worker Alfredo Garcia, aged 55, in Ituango. He had received threats from paramilitary groups for his alleged link to ex FARC guerrillas.
"This situation is due to a lack of a clear public security policy that really guarantees the life and integrity of the inhabitants," human rights defender Yesid Zapata said.
Thousands of Indigenous people in Colombia marched to Bogotá demanding to meet the president over violence and massacres by guerrilla groups on their land.
He has refused to meet them. So they staged a mock trial: “Today we tell him that he has cowardly barricaded himself in.” pic.twitter.com/zwIzzXO2FO