Kammala wannan jumlar: Pen Ran ya ɓace a lokacin kisan kare dangi na Khmer Rouge a ƙarshen 1970s kuma ba a san ainihin makomarta ba. 'Yar'uwarta Pen Ram ta ce ta tsira har sai da
mamayewar Vietnam a ƙarshen 1978/farkon 1979 lokacin da Khmer Rouge suka ƙaddamar da jerin kisan gillarsu na ƙarshe. Ganin manufar Khmer Rouge don cire tasirin kasashen waje daga al'ummar Kambodiya, ƙila mutumcin Pen Ran ya tabbatar da mutuwarta. A cikin wani shirin BBC na 2015 game da ƙungiyar Cambodia Space Project, waɗanda suka yi waƙoƙin waƙoƙin Pen Ran da yawa, an yi zargin wani batun hira da cewa Khmer Rouge sun yaudare ta ta yi waƙar ɗaya daga cikin waƙoƙinta, bayan haka aka tafi da ita aka kashe ta.