john lowery: thank you very much.ate you. ♪ amna: this coming monday marks the 80th anniversary of the liberation of the auschwitz-birkenau extermination camp. 1,000,100 1000 people were murdered there during the holocaust. one of the youngest survivors was an eight-year-old polish girl named rutka who took the name rachel hyams. decades later, she died by suicide. her daughter has been retracing her mother's steps and allowed special correspondent malcolm brabant to come along on the journey. >> take a deep breath. this place has dominated my whole life. this place destroyed my family and continues to destroy my family. >> she has been a lifetime resisting the compulsion to come here. >> that station looks completely intact. no different than it did over 80 years ago. >> now supported by her daughter lindsay, audrey has traveled from toronto to try to find answers to two unresolved family mysteries. why was her grandfather killed during a fight in a cattle car on the way to auschwitz-birkenau? more importantly, what