In the first hours after the Texas
school shooting that left at least 10 dead Friday, online hoaxers moved quickly to spread a viral lie, creating fake Facebook accounts with the suspected shooter's name and a doctored photo showing him wearing a "Hillary 2016" hat.
Several were swiftly flagged by users and deleted by the social network.
But others rose rapidly in their place: Chris Sampson, a disinformation analyst for a counterterrorism think tank,
said he could see new fakes as they were being created and filled out with false information, including images linking the suspect to the anti-fascist group Antifa.
It has become a familiar pattern in the all-too-common aftermath of U.S. school shootings: A barrage of online misinformation, seemingly designed to cloud the truth or win political points.
But some social media watchers said they were still surprised at the speed with which the Santa Fe shooting descended into information warfare.
Sampson said he watched the clock after the suspect was first named by police to see how long it would take for a fake Facebook account to be created in the suspect's name: less than 20 minutes.
"It seemed this time like they were more ready for this," he said. "Like someone just couldn't wait to do it."
The fakes again reveal a core vulnerability for the world's most popular websites, whose popularity as social platforms is routinely weaponized by hoaxers exploiting the fog of breaking news.