On Monday, the U.S. Embassy in Phnom Penh said that military scientists tested the remains and found they are not Caucasian.
Four died in the ambush on National Road 3 on May 31, 1970, and five more were executed as prisoners.
Thousands of Cambodians now live in Lowell, many of them after having fled Cambodia’s civil war and the Khmer Rouge in the 1970s.
The Khmer Rouge ruled for only four years, but it has taken more than 30 to relieve the trauma, he said. And it’s still there.
The Cambodian side says it only has enough money for two more weeks of operation.
It is important students learn about the Khmer Rouge era.
The Cambodian side now has only $200,000 in hand, which will fund operations for the next two weeks.
She wants the prosecutions to end with the five people already in custody.
Cambodians are still reticent to discuss their experiences with their children.
Cambodia and the US will mark 60 years of diplomatic relations in July.
Pen Sovann was the prime minister under the first government put in place by the Vietnamese.
Rapp is on a two-day visit to Phnom Penh, where he met with government officials, NGOs, donor representatives and tribunal officials.