As for the PDF availability, I couldn't find any information on the official e-book release of "Satanás". However, you may be able to find a PDF version through online libraries or bookstores that offer e-book rentals.
The narrative is a fictionalized account of the real-life Pozzetto massacre committed by Campo Elías Delgado in 1986. The story intertwines the lives of four main characters: Satanas Pdf