Sources: Derailed Train Operator Allegedly 'Dozing Off'

A union representative claims William Rockefeller caught himself, but it was too late.
3:00 | 12/04/13

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Transcript for Sources: Derailed Train Operator Allegedly 'Dozing Off'
Now, new details in that fatal train derailment in new york that left four people dead. More than 60 injured. The train's engineer is telling investigators that he was, quote, in a daze right before the train went off the rails. Abc's gio benitez is at the scene in the bronx. Good morning, gio. Reporter: Robin, good morning to you. We are down at that train station. And amazingly, it has already reopened. In fact, just behind us, you can still see some of the debris. But right now, investigators are zeroing in on that train operator. Dazed, dozing, possibly even asleep. This morning, sources telling abc news, train operator william rockefeller admitted he was dozing off just before sunday's deadly crash. His lawyer reportedly saying, rockefeller suffered highway hypnosis. A trans-like state, where a driver falls asleep with eyes wide-open. He caught himself. But it was too late. It was a shock to him. He was stunned. Realizing he went to try to correct it as fast as he could. Reporter: This morning, those comments are backfiring. In a rare move, the union has now been kicked out of the ntsb investigation into the crash for speaking publicly before all the facts have been gathered. What has been determined, that rockefeller was on day two of a five-day workweek. Shifts nine hours long. No apparent red flags in terms of getting enough rest. There's no indication that he didn't have time to get full, restorative sleep. Reporter: New york's governor seems so be putting the blame squarery on rockefeller. The operator has rights. But there's all sorts of liability questions. Reporter: Four people were killed in the derailment. More than 60 injured, as the train approached a curve at 82 miles per hour, almost three-times the speed limit there. In another rare move late tuesday, the u.S. Department of transportation weighed in. Saying we have significant concerns about the current situation at metro north. Four serious accidents in less than seven months is simply unacceptable. And investigators have drug-tested that train operator. They're awaiting those results. But right now, robin, we do know that his blood alcohol test came back negative. And been told he's very cooperative, as well. Gio, thanks. Now to josh with the other

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