NEW YORK (CBSNewYork) -- Metro-North Railroad will soon evaluate all of its engineers for sleep apnea.
The move comes two weeks after a National Transportation Safety Board report revealed that the engineer in December's deadly derailment has been diagnosed with severe sleep apnea.
William Rockefeller told investigators that he felt dazed and mesmerized seconds before the crash.
Four people were killed and dozens were injured when a Metro-North train flew off of the tracks in Spuyten Duyvil.
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