Andrew Witt, a former senior airman, was convicted in 2005 of a double homicide, and was later sentenced to life without parole.
An Army doctor was federally indicted for trying to pass sensitive medical information about members of the military to Russia.
The technical sergeant entered a guilty plea to parading, demonstrating or picketing in a Capitol building and will be sentenced in November.
Chief Master Sgt. Jamie Kohr pleaded guilty to dereliction of duty and failure to obey an order or regulation.
