Paul Mitchell, a student at Raleigh Egypt Middle School learned he received a "D" in his history class, which meant he would have to attend summer school.Mitchell posted on Facebook that his history teacher and the principal should be shot.Mitchell also posted a cartoon that showed the teacher's head on a body that had been mutilated.Mitchell's mother instructed her son to remove the post, but he refused.The principal suspended Mitchell for the last month of school and contacted the police.

Is he protected by the first amendment right