https://www.splcenter.org/hatewatch/2015/11/25/three-men-who-shot-black-lives-matter-protesters-emerged-internet’s-racist-swamps
"As more facts emerge in the case, it’s now beginning to appear that not only was the attack a carefully planned attempt to disrupt the demonstration, but the men who participated in the shootings had been radicalized in the course of conversing on websites and in chatrooms where racist and other far-right extremist ideology flourishes."
