Cika wannan jumlar: A shekarar 2019, masu aikata laifin harbin masallacin na Maris na Christchurch, na Afrilu
Harbin majami'ar Poway, da harbin El Paso na watan Agusta duk sun yi amfani da 8chan don yada takardun su. An cire rukunin yanar gizon daga cikin tsabta ba da daɗewa ba bayan harbin watan Agusta saboda dakatar da sabis daga masu samarwa da yawa, kuma bai dawo ba har zuwa Nuwamba 2019. A watan Agusta 2019, Kwamitin Tsaro na Gida na Amurka ya kira Watkins ya ba da shaida game da ƙoƙarin 8chan don magance "yaɗuwar abubuwan tsattsauran ra'ayi, gami da abubuwan da suka shafi fararen fata". Wata mai zuwa, Watkins ya tafi Washington, DC don tambayoyin majalisa. Ofishin Bincike na Kasa na Philippines (NBI) da 'Yan Sanda na Kasa (PNP) suma sun ƙaddamar da bincike kan Watkins da 8chan a watan Agusta 2019 dangane da harbe-harben., An rufe binciken NBI kuma an ba da binciken su ga PNP; Binciken PNP har yanzu yana buɗe amma bai haifar da tuhumar Watkins ba.