PHNOM PENH, CAMBODIA - MARCH 26: German Ambassador to Cambodia Joachim Baron von Marshall (R) is blessed by a Buddhist monk as S-21 survivor Chum Mey (2nd R) prays during the unveiling of a new memorial stupa for victims of the Khmer Rouge in Phnom Penh on March 26, 2015. A memorial stupa was officially unveiled on the grounds of the former Khmer Rouge prison, now a genocide museum, in Cambodia’s capital Thursday to commemorate 12,272 people who perished at the site at the hands of the ultra-Maoist Khmer Rouge. (Lauren Crothers - Anadolu Agency)
PHNOM PENH, CAMBODIA - MARCH 26: A memorial stupa is officially unveiled on the grounds of the former Khmer Rouge prison, now a genocide museum, in Cambodia’s capital, Phnom Penh on March 26, 2015 to commemorate 12,272 people who perished at the site at the hands of the ultra-Maoist Khmer Rouge. (Lauren Crothers - Anadolu Agency)
PHNOM PENH, CAMBODIA - MARCH 26: (From left) German Ambassador to Cambodia Joachim Baron von Marshall, S-21 survivors Chum Mey, Bou Meng, Cambodian Deputy Prime Minister Sok An, and S-21 survivor Norng Chan Phal pose for photographers at the inauguration ceremony of a new memorial stupa in the grounds of the former Khmer Rouge prison, now a genocide museum, in Phnom Penh Cambodia on March 26, 2015. (Lauren Crothers - Anadolu Agency)
PHNOM PENH, CAMBODIA - MARCH 26: (From left) S-21 survivors Bou Meng, Chum Mey and Norng Chan Phal attend the inauguration ceremony of a new memorial stupa in the grounds of the former Khmer Rouge prison, now a genocide museum, in Phnom Penh Cambodia on March 26, 2015. (Lauren Crothers - Anadolu Agency)
PHNOM PENH, CAMBODIA - MARCH 26: S-21 survivors Chum Mey (foreground) and Norng Chan Phal (background) attend the inauguration ceremony of a new memorial stupa in the grounds of the former Khmer Rouge prison, now a genocide museum, in Phnom Penh Cambodia on March 26, 2015. (Lauren Crothers - Anadolu Agency)
PHNOM PENH, CAMBODIA - MARCH 26: A memorial stupa is officially unveiled on the grounds of the former Khmer Rouge prison, now a genocide museum, in Cambodia’s capital, Phnom Penh on March 26, 2015 to commemorate 12,272 people who perished at the site at the hands of the ultra-Maoist Khmer Rouge. (Lauren Crothers - Anadolu Agency)
PHNOM PENH, CAMBODIA - MARCH 26: The names of some of the 12,272 victims of the Khmer Rouge S-21 prison inscribed on a plaque are seen at the unveiling of a new memorial stupa in the grounds of the former Khmer Rouge prison, now a genocide museum, in Phnom Penh Cambodia on March 26, 2015. (Lauren Crothers - Anadolu Agency)
PHNOM PENH, CAMBODIA - MARCH 26: S-21 survivor Bou Meng arrives to attend the inauguration ceremony of a new memorial stupa in the grounds of the former Khmer Rouge prison, now a genocide museum, in Phnom Penh Cambodia on March 26, 2015. (Lauren Crothers - Anadolu Agency)