Complex sentence: Kelley was prohibited by law from purchasing or possessing firearms and ammunition due to his domestic violence conviction in a court-martial forwhile in the U.S. Air Force, which did not record the conviction in the FBI National Crime Information Center database.
Split into simpler sentences: Kelley was prohibited by law from purchasing or possessing firearms and ammunition due to his domestic violence conviction in a court-martial while in the U.S. Air Force. The Air Force failed to record the conviction in the FBI National Crime Information Center database.