Similar event happened at my school, kid got in school suspended for 1 day after threatening to "gut" my entire grade (he pulled out a 8 inch knife which was WAY too big, you're only supposed to have a 3 inch knife)
I literally got suspended 3 days AND got almost an entire semester in school suspension after telling my friends a CoD joke, in which my ex was being nosey af, misheard my joke, and reported me for a school shooting threat. I just hope i find her with her car broken down on the side of the road just so i can roll my truck window down and laugh hysterically