While picking at these nits about rank terminology, I noticed that the military ID card for Sergeant First Class Baird was marked as "SFC" (Correct), the dead woman's ID card was inconsistent. She was listed as a "SSgt" for Staff Sergeant, but Army (and National Guard) uses the abbreviation of SSG.
All Army ranks use a similar system. From PV1 to PV2, PFC, CPL, SPC, SGT, SSG, SFC, MSG, 1SG, SGM, etc. Air Force would use SSgt, but SSG would be Army.