The website also contained an unsigned , 2,444-word manifesto apparently authored by Roof , in which he outlined his opinions , all methodically broken into the following sections : " Blacks " , " Jews " , " Hispanics " , " East Asians " , " Patriotism " , and " An Explanation " : The manifesto states that its author was " truly awakened " by coverage of the shooting of Trayvon Martin : The manifesto also mentioned as another source of influence the Northwest Front , a Seattle-based white supremacist organization infamous for its participation in the 1979 Greensboro massacre
Greensboro massacre
Greensboro massacre
Dylann Roof