A DeKalb County School District special education teacher arrested on drug charges at Hartsfield-Jackson International Airport last month has resigned, district officials said.

Raheema Cox was arrested Jan. 10 after he arrived to the airport from Portland, Ore. According to a police report, A canine officer was triggered by Cox’s bag, but Cox refused a voluntary search. A search performed after a search warrant was approved recovered more than two pounds of a “green leafy substance” as well as eight gummy candies containing THC.

District officials said Cox resigned Jan. 24 in lieu of termination.

Channel 2 Action News said students who knew Cox, a special education teacher at Southwest DeKalb High School, were shocked by his arrest.

Cox was charged with possessing a Schedule I narcotic, marijuana possession and giving a false name, having told authorities at the airport that his name was Kevin.