The SPLC report, however, did not allege that Atchison was necessarily motivated to perpetrate the shooting by the alt-rights misogyny and racism, but rather that he spent years stewing in the online communities and propaganda that define the ideology and intentionally foster grievance, injustice, and resentment all well-documented predictors of mass violence.
A detailed investigation into Atchisons online presence conducted by the Daily Beast revealed that the troubled young man spent his days online creating pro-Trump memes, posting violent threats, and glorifying school shooters. He modeled his pseudonyms after mass shooters such as Adam Lanza, the notorious perpetrator of the Sandy Hook shooting, and Anders Breivik, the racist Norwegian shooter who killed 77 and injured 319 in 2011. Other pseudonyms included Future Mass Shooter and School Shooter.
Atchison also allegedly frequented the Daily Stormer, the racist alt-rights most notorious website, in addition to other known online communities favored by the alt-right, such as EncyclopediaDramatica, Kiwi Farms, 4chan and various videogame forums.
Atchisons affinity for and participation at the Daily Stormer was affirmed by the sites administrator, Andrew Auernheimer, in a recent episode of his radio show. Auernheimer, who goes by Weev online, also stated that Atchison had written to him on social media.
Last week we had an event happen where a kid that was an alleged Daily Stormer reader, Weev told his guest, Mike Peinovich of the Right Stuff. William Edward Atchison, he went to a school and he shot two spics and then he shot himself. Its a little bit surreal. I dont doubt this kid read the Daily Stormer. He left comments on my wall.