Governor says it 's unclear whether attack was terrorism , job violence or both . Comment: FBI involved because suspect `` was saying Arabic terms '' during attacks , official says . Nolen , a recent convert to Islam , is accused of carrying out the attacks Thursday at a Vaughan Foods processing plant soon after he learned he 'd lost his job there . Alton Alexander Nolen , 30 , is charged with murder , attempted murder , assault .
Governor says it 's unclear whether attack was terrorism , job violence or both . Comment: FBI involved because suspect `` was saying Arabic terms '' during attacks , official says . Alton Alexander Nolen , 30 , is charged with murder , attempted murder , assault .