Then one day, she typed her child's name into Facebook on a library computer, and suddenly found herself exchanging messages with a young woman who said she was her daughter in what experts say was a rare online success in the search for missing kids online.
But the exchange wasn't a happy reunion.
"She thought I was a stranger woman," Sagala said, with hurt and frustration in her voice. "I wrote back and she deleted it. Then, she disappeared."
Authorities tracked down the children, now 16 and 17, outside