(原始内容存档于2018-10-27). Robert Bowers was an avid user of Gab, a social network popular among white nationalists and the alt-right. Brustein, Joshua. Gab, an
Attack of the Fanboy. 1 May 2015 [13 February 2016]. (原始内容存档于2016-02-15). Brustein, Joshua. Microsoft Turns a Minecraft Mod Into an Education Business. Bloomberg