Ka taƙaita labarin:  Mutumin da ake zargin ya kashe maƙwabcinsa an yi imanin yana fama da rashin hankali da kuma shan barasa a lokacin da ya yi kisan gilla a shekarar 2012, an ji karar da aka yanke. An zargi Luigi Costa, mai shekaru 71, da taka kan tsohuwar maƙwabcinsa Terrence Freebody, ya yanke makogwaro ya kuma yi masa wuka sau da yawa a cikin ɗakin cin abincin gidansa a Mugga Way a Red Hill, Canberra a watan Yulin 2012. Farfesa Paul Mullen masanin ilimin likitancin likita ya binciki Costa bayan harin kuma ya yi imanin cewa akwai shaidar yanayin tunanin wanda ake tuhuma yana raguwa kafin faruwar lamarin da kuma yayin taron, ABC ta ruwaito. An zargi Luigi Costa, mai shekaru 71, da kashe tsohon makwabcinsa Terrence Freebody a dakin cin abincin gidansa a Mugga Way, Red Hill, Canberra a watan Yulin 2012. Farfesa Mullin ya shaida wa kotun cewa kiran da Costa ya yi 'kusan tabbas' a lokacin lamarin ya tabbatar da cewa yanayinsa ya canza daga 'lokaci zuwa lokaci'. Ya kuma ce bindigogin najasa daga wurin aikata laifin zuwa bayan gida da 'yan sanda suka gano Costa ya nuna rikicewar tunaninsa. 'Na yi imanin cewa a lokacin kisan Mr Costa kwakwalwarsa ta kamu da cutar dementia kuma idan ka kara da wannan barasa wanda ya haifar da rikicewa,' in ji shi. 'Ba na tsammanin za ku fahimci abin da kuke yi a wannan yanayin ko ku fahimci mummunan sakamako na dogon lokaci.' Mai gabatar da kara Shane Drumgold ya ba da shawarar cewa Costa ya nuna rashin ƙwaƙwalwar ajiyarsa yayin da Farfesa Mullin ke ganawa da shi - wanda ya musanta waɗannan da'awar. "A ganina ya fi yiwuwa cewa Mista Costa yana fama da rashin lafiya a cikin makonni, watanni da watakila shekaru a cikin jagorancin wannan taron", in ji shi. Yanayin tunanin Costa yana da mahimmanci ga shari'ar, kamar yadda. Lauyan zai iya yanke hukuncin rashin laifi idan za a iya tabbatar da tunanin rashin kwanciyar hankali na Costa a lokacin harin. Yi haƙuri ba mu karɓar maganganu a halin yanzu a kan wannan labarin.
An zargi Luigi Costa, mai shekara 71, da kashe makwabcinsa Terrence Freebody. Costa ya yi zargin cewa ya tattake kansa, ya yanke makogwaronsa kuma ya buge shi sau da yawa a cikin ɗakin cin abinci na Freebody a Red Hill, Canberra a watan Yulin 2012. Masana sun ce Costa na fama da rashin hankali da kuma shan barasa a lokacin. Ya kuma ce akwai alamun rashin lafiyar Costa kafin faruwar lamarin.