Wait, did you read this all?
If I read it correctly the kid HAS a gun NOT Pointing a gun or waving it around but it sounds like it is stuck in his pants or clothes etc.
That is not a reason to shoot and/or kill.
First of all it could be a fake gun OR not even a gun at all.
If the description in the story is true then it sounds like they handled it right.
but shooting BECAUSE he has a gun is wrong! Period.
WHEN he brings it out and starts pointing it THEN its trigger time.
As long as he’s handling the gun in a responsible manner there isn’t a problem.