He killed Chea Vichea, Chut Wutty, Kem Ley, and many more Cambodians.

Entity and relation annotations:
id: 0
type: entity
value: text: Chea Vichea
labels: <Person>
id: 1
type: entity
value: text: Chut Wutty
labels: <Person>
id: 2
type: entity
value: text: Kem Ley
labels: <Person>
id: 3
type: entity
value: text: Cambodians
labels: <Organization>