On the morning of the shooting, Gene Rosen of Newtown, Conn., was feeding his cats when he discovered six terrified children hiding out in his driveway. They told him their teacher was dead, and he listened to their chilling account of the tragedy still going on at the nearby Sandy Hook Elementary School.

In the aftermath, Rosen, 69, was interviewed by many of the media outlets that descended on the small community, and his anguished face flashed across television screens around the world.

The sincerity of that anguish was questioned by a group of conspiracy theorists who call themselves "truthers," Salon reported earlier this month. These truthers have so far posted Rosen's personal information online, created fake social media accounts using his name and harassed him via email and phone.