The Pittsburgh Suspect’s Internet of Hate

Robert Bowers was an avid user of Gab, a social network popular among white nationalists and the alt-right

The FBI command center at the site of the mass shooting that killed 11 people and wounded 6 at the Tree Of Life Synagogue on October 28, 2018 in Pittsburgh, Pennsylvania. Photo: Jeff Swensen/Getty Images

Before a gunman opened fire on the Tree of Life synagogue in Pittsburgh Saturday morning, he posted a threat to the Jewish community online.