Kammala jumla mai zuwa: Fredy Peccerelli (an haife shi a 1971), masanin ilimin kimiyyar lissafi, shi ne Darakta kuma daya daga cikin wadanda suka kafa Gidauniyar Nazarin ilimin lissafi na Guatemala a Guatemala City, wata kungiya mai zaman kanta da ke fitar da kaburbura masu yawa na wadanda aka kashe
Yaƙin basasa na Guatemala. Peccerelli, tare da membobin danginsa na kusa, sun kasance batun barazanar kisan kai akai-akai sakamakon aikinsa.