Mario Chen Rojas, 59, survivor from the Rio Negro massacre, holds a photo of his mother Martina Rojas while sitting at home. In October 2013, the Forensic Anthropology Foundation of Guatemala (FAFG) identified and returned the remains of his mother Martina Rojas, abducted by the army on a helicopter during the 14 May 1982, Los Encuentros Massacre. Martina was exhumed in 2012 from grave XV at the UN's CREOMPAZ training centre, formerly Coban's Military Zone 21, and eventually identified via DNA matching. During the massacre, soldiers and civil patrolmen killed 79 community members from Rio Negro who were hiding there after two previous massacres of February and March of the same year. As of May 2016, CREOMPAZ's grave XV has rendered positive DNA matches for the remains of two victims, Martina being one of them. Mario lives in Pacux, the resettlement village outside Rabinal where the former Achi Mayan residents of Rio Negro were forcibly relocated after the massacres and destruction of their village and dozens more due to the flooding of the Chixoy river basin and construction of the Chixoy Hydro-electric project.