 He last saw his daughter when she was eight years old; in 1988, she was lost in the jungle while tending water buffalo near the border with Vietnam.Her six-year-old sister was lost on the same day and has never been found.He identified the girl based on a scar on her arm, supposedly from a knife accident that occurred prior to the girl's disappearance, and by facial features similar to those of her mother, Rochom Soy.