" A year after the event, the Office of Chief Medical Examiner had issued 2,733 death certificates for the victims of the World Trade Center bombings—1,344 by judicial decree and 1,389 based on identified remains. The count of Members of the Service confirmed dead was 343 firefighters, 23 NYPD officers, and 48 others, most of these Port Authority police. The dead left more than 3,000 orphans. It was the largest mass murder in United States history. "

― Judy Melinek , Working Stiff: Two Years, 262 Bodies, and the Making of a Medical Examiner