Primetime Live: Masha's Story/Push-Pull Trains

Pictures of a skinny little girl, tied up and raped, became a popular visual in cyberspace for pedophiles - but no one knew who the little girl was nor who the sick person was taking and posting the photos. For five years police helplessly watched this girl grow older on the internet, as new photos were posted. Finally, police were able to track down the pedophile responsible for tormenting this little girl - a girl named Masha. For the first time ever, Masha, a Russian orphan adopted at age five by Mathew Mancuso, a 41-year-old divorced, wealthy American, speaks out about her trip to hell and back.A look at a terrible train accident caused by a man who reconsidered his suicide on train tracks near Los Angeles and a look a little-known risk when riding on a train - the train car some insiders call the "coffin car."