The photo at the York County Fair in Nebraska was shocking.
The manipulated image showed York High School erupting in a ball of fire with a hooded figure in the foreground.
“They never seen this coming,” is impoosed on the image, reports York Times.
Now the FBI is trying to determine whether the photo was an off-colored prank or a legitimate threat.
“We consider it an act of intimidation and extremely poor decision-making,” Superintendent Dr. Mike Lucas told the York Times. “It is unclear to me who is responsible for this or how many people were involved, but it’s a real shame that this has transpired.”