Carter, 18, reportedly posted "oh yeah, I'm real messed up in the head, I'm going to go shoot up a school full of kids and eat their still beating hearts." According to his father, his next two lines of text were "lol" and "JK."
After a Canadian woman saw the Facebook post and called the police, Justin Carter was arrested and charged with making a terrorist threat, Gamespot reports. Carter faces up to eight years in prison. Family and friends have started an online petition asking for his release as well as adjustments to anti-terrorism legislation.