I'm really only saying that to ignore this boy's attempt to gain attention with suggestions of violence, needs to be publicly recognized.
If it's just ignored then he will almost certainly up the ante in some way until he gets the attention he craves.
This won't escalate into a school shooting but it would be allowed to escalate in the direction of violence.
Perhaps only escalated into a fist fight against another student he feels is his political enemy.
And then what reaction from his chosen victim? Get his father's gun and even the score?
I can't be of any furthere help. America has to make its own choices!