Conversation so far:
When was the separatist movement?
Headed by a Khmer Krom Buddhist monk, Samouk Sen, the group was nicknamed the "White Scarves" .
what was special about them?
allied itself with FULRO against South Vietnam.
was this helpful?
The "White Scarves" arrived in Kiri Vong District in 1976, making overture to the Khmer Rouge.
Are there any other interesting aspects about this article?
Subsequent orders from the Khmer Rouge leadership however had Samouk Sen arrested, taken to Phnom Penh, tortured, and killed.

Question: were any others killed?
Self-contained rewrite: Besides Samouk Sen, were any others killed?