NTSB hunts details in deadly commuter train wreck

September 14, 2008 12:00:00 AM PDT
Rail officials say a dispatcher tried to warn the engineer of a Metrolink commuter train that he was about to collide with a freight train but the call came too late. The railroad says a dispatcher called the train and reached the conductor in the rear of the train. But by then it had already crashed into a Union Pacific train -- killing 25.

The engineer was killed in the accident.

Metrolink says the engineer ran a red signal, but it could be a year before federal investigators determine a cause.