A Facebook investigation of the militia page turned up no evidence that the page or the event it promoted had any connection to the 17-year-old accused of committing the killings, Zuckerberg said.
But the Facebook contractors who received the initial reports from users about the militia page did not “pick it up,” he said.
“On second review, doing it more sensitively, the team that’s responsible for dangerous organizations recognized this violated the policies, and we took it down,” Zuckerberg said.
But by then, the armed event the page was promoting had received at least 2,600 responses and had caught the attention of at least one right-wing conspiracy website.
Zuckerberg said Facebook is now “proactively out there looking for content” that praises the shooting.
“We’re going to continue to enforce our policies,” he said, “and continue evolving the policies to be able to identify more potential dangerous organizations, and improve our execution in order to keep on getting ahead of this.”