No doubt it will happen again.
No effective measure has been taken to secure and fortify the targets of such an attack, and none will be, because the politicians of America have politicized these events and any effective measure a school could take to fortify aginst them.
It is just a matter of time, and it’s obvious to me that people want this to happen.
Some 11th of the month AQ will simultaneously attack one school in each time zone.
The Dems and the media want more shootings, to further their agenda.