AdvertisementPentagon leak suspect Jack Teixeira pleads not guilty to federal chargesUpdated June 21, 2023Jonathan FranklinfacebookEmailIn this artist depiction, Massachusetts Air National Guardsman Jack Teixeira, seated second from right, appears in U.S. District Court, in Boston, April 19, 2023. Teixeira, accused of leaking highly classified military documents on a social media platform, is due back in court on June 21, after being indicted on federal felony charges. (AP)This article was originally published on June 21, 2023.