Teixeira pleaded guilty last year to six counts of willful retention and transmission of national defense information under the Espionage Act. The post Court-martial convenes for Mass. National Guardsman Jack Teixeira appeared first on Boston.

Court-martial proceedings began on Monday for Jack Teixeira, a member of the Massachusetts Air National Guard who is facing military charges after already being sentenced to 15 years in prison for leaking classified U.