NYPD investigators arrested former Delta employee Mark Quentin Henry in December 2014 after he flew from Atlanta to New York with 18 handguns in a carry-on bag.
Later that month, authorities here arrested Eugene Harvey of College Park, who worked as a Delta baggage handler at Hartsfield-Jackson International Airport. He allegedly took the weapons past security and handed them off to Henry.
Henry, Harvey and a Brooklyn man are charged with aggravated enterprise corruption.
The Brooklyn district attorney's office alleges that Henry purchased most of the guns through a website, www.theoutdoorstrader.com, buying 10 to 20 guns at a time and picking them up from sellers around Atlanta. He allegedly made 17 trips between New York airports and Hartsfield-Jackson from May to December 2014. The Brooklyn man, Ernest Lenau, allegedly took the guns and sold them to an undercover detective.
Henry, a former Delta ramp agent, allegedly used the flight privileges of his mother, a retired Delta employee, to make the flights.
Harvey allegedly smuggled the guns into secure areas of Hartsfield-Jackson via an employee entrance.
The discovery led to a major revamp of employee screening at the world's busiest airport, and questioning at the federal level about the state of employee screening at airports around the country.
Delta said it is working closely with law enforcement, and partnering with the airport and the Transportation Security Administration to establish employee screening at Hartsfield-Jackson.