Trouble ahead for William Rockefeller, the engineer of the Metro North train that derailed on Sunday killing four and leaving 63 injured. The word is that he was asleep at the time of the deadly accident, DNAInfo New York reports.

Veteran engineer William Rockefeller all but admitted he was falling asleep as the train came roaring to a curved section of track north of Spuyten Duyvil in statements made shortly after four people were killed and dozens were injured in the wreck, sources said.

He apparently woke up just as the train, travelling at 82 MPH, was heading into a precarious curve that called for the train’s speed to be reduced to just 30 MPH.

As the train entered the curve, sources said, Rockefeller was jolted from his sleep and hit the brake, but not in time. The cars derailed, and several careened onto their sides before grinding to a halt on the edge of the Harlem River. Four people were killed, three of whom were thrown out of the cars, and more than 60 others were injured.

Rockefeller, 46, has been an engineer for roughly 11 years and a Metro-North employee for 20 years, and has an unblemished record.

Sources said he took a drug and alcohol test, and they do not believe either was a factor in the crash.

This was cross-posted from The Hinterland Gazette.