PACCHA, Peru (AP) — This remote hamlet on fertile Andean slopes beside the Apurimac river has been a ghost town for three decades, inhabited only by the buried bodies of villagers slain by security forces who considered them rebel sympathizers. Earlier this month, forensic investigators began unearthing the remains of the nearly two dozen victims of the July 14, 1984, massacre in this region where government forces regularly hunted alleged collaborators of the Shining Path guerrillas. Dolores Guzman, the sole survivor, set aside the street stand where she sells hard-boiled eggs in the capital of Lima and journeyed last week to Paccha to help forensic experts find the common graves. Peruvian prosecutors have only recently begun in earnest to catalog the human rights violations committed during those two decades, and identify those responsible. Since 2003, the remains of slightly more than 2,400 victims have been recovered, but the bodies of an estimated 12,000 more, mostly poor, Quechua-speaking farmers, are believed to remain unearthed.