to make that happen, gadi, mussn bizimana have gone from being students of through the eyes of children becoming its teachers. photo workshops they're runninge around torld are designed to help other children who've osffered from trauma and l kids like 12-year-old adrian, who's in foster care in boston. >> this is awesome! >> you like it? >> reporter: in rwanda, the teaching they're doing is giving even more children the ability to document and tell their own story-- and rwanda's. something theye been doing for nearly 20 years. and when they look through the lens, they see a humanity that was lost, now found, especially in the n t generation, their generation. >> and it was hard to believe, to be honest, until i met this couple. one is a son of a perpetrator, and the other one is a survivor. from killing each other, forgiving each other, reuniting with each other, living with each other, now marrying each other. it's a sign of how far things ha come. >> reporter: for the pbs newshour, i'm beth murphy in gisenyi, rnda. >> woodruff: and, beth murphy's story is the subje of a forthcomindoc