Ka taƙaita labarin:  Gwamnan Oklahoma Mary Fallin ta rattaba hannu kan wata doka a ranar Juma'a da za ta ba jihar damar aiwatar da kisa da iskar nitrogen idan aka yanke hukuncin kashewa ba bisa ka'ida ba ko kuma ba a samu ba. Nitrogen yana haifar da saurin rasa hankali sannan kuma mutuwa daga rashin iskar oxygen, ofishin Fallin ya ce a cikin sanarwar manema labarai. Kamfanin KFOR na CNN ya ce ba a taɓa amfani da shi a kisa a Amurka ba. "Mutumin zai yi rashin sani cikin sakan takwas zuwa 10 kuma ya mutu bayan 'yan mintoci kaɗan. A wasu kalmomin, mutuwar mutum, mai sauri da rashin jin daɗi, "in ji Rep. Mike Christian, ɗaya daga cikin marubuta na lissafin, a cewar KFOR. Robert Dunham, babban darektan Cibiyar Bayar da Bayani a Kan Hukuncin Kisa, ya gaya wa jaridar Washington Post cewa an yi amfani da wannan hujja "marar zafi" don a yi amfani da allura mai kashewa. "Hanyar hanzari da wannan lissafin ya yi hanzari ya zama doka yana nuna rashin kulawa iri ɗaya da Oklahoma ta gudanar da aiwatar da hukuncin kisa a tarihi", in ji shi. An dakatar da hukuncin kisa na Oklahoma yayin da Kotun Koli ta Amurka ke nazarin amfani da allurar da ke kashewa. A shekarar da ta gabata, jihar ta shiga cikin bincike lokacin da ya ɗauki mintuna 43 don kashe mai kisan kai Clayton Lockett. Fallin ta sake tabbatar da goyon bayanta ga hukuncin kisa. "Oklahoma ta kashe masu kisan kai wadanda laifinsu ya kasance mai ban tsoro", in ji Fallin. "Ina goyon bayan wannan manufa, kuma na yi imanin cewa dole ne a aiwatar da hukuncin kisa yadda ya kamata kuma ba tare da zalunci ba. Dokar da na sanya hannu a yau ta bai wa jihar Oklahoma wani zaɓi na hukuncin kisa wanda ya cika wannan mizanin. " Ofishin gwamnan ya ce madadin farko na hukuncin kisa shi ne allura mai saurin kisa, sai kuma iskar nitrogen, da kujerar lantarki da kuma rukunin masu harbi.
Gas na nitrogen yana haifar da saurin rasa hankali sannan kuma mutuwa daga rashin iskar oxygen, in ji Oklahoma. An dakatar da zartar da hukuncin kisa a jihar yayin da Kotun Koli ta Amurka ke nazarin amfani da allurar da ke kashe jihar.