Helble reported that the substance, although unidentified, had raised concerns by the US State Department that poison gas was used because the symptoms were not consistent with standard tear gas.
Helble melaporkan bahwa substansi tersebut, meskipun tak teridentifikasi, telah memberikan kesimpulan bagi Departemen Negara AS bahwa gas beracun dipakai karena gejalanya tak sama dengan gas air mata standar.