In the days and hours ahead of his deadly killing spree at a New Zealand mosque on Friday, the alleged shooter left a trail of digital evidence that demonstrated one clear purpose: His terrorist attack was conceived with the internet in mind. The murderer was making a snuff film for the social media era, one that would get instantaneous global distribution by being broadcast live to his Facebook page.

Even the location for the shootings, tucked-away New Zealand, was apparently selected to send a message that would resonate instantly across the darker digital world: No place on earth is safe any longer from the white supremacists and their creed, who have achieved a new life on the internet.