PHNOM PENH, Cambodia (CNN) -- Many know Cambodia for its so-called killing fields. Those are the mass graves, the legacy of genocide, in the 1970s, that left at the very least, 2 million people dead.
At age 15, a boy named Sano Ray was forced to join the terribly army responsible for that slaughter. But today, his mission is all about hope.
Sano is turning his childhood nightmare into hope for others, just click the video to learn more.