be close to an underground nuclear test. remember last month, north korea tried to launch a rocket that blew up after liftoff and crashed into the sea. analysts say the communist government there could try to detonate a nuclear device in an attempt to save face. cops in california say a stranger snatched a girl on her way to school and murdered her. this guy is now under arrest, authorities say they found his d.n.a. inside the 15-year-old victim's bag. that bag turned up near san jose, california, close to where sierra lamar vanished in march. officials say they have strong evidence that the suspected killer got the teenager but her parents say they still have no -- that they have hope they'll find her daughter alive. >> we just need to bring sierra home so we still need to find her. so we're looking for everyone to help us do that. so -- and we're -- we want