In the olden days such a disaster would merit a single monument with the names of those slain on it.
Now days such memorials may take up acres of space. The OKC building bombing comes to mind.
Our monument is bigger than your monument because WE care more!
Actually here a monument could be good. Instead of tearing down the building, create a “quad’ area with life size bronze statues of each of the victims millig about. Create a jouyous space for where the spirits of those slain can gather and be happy and always in school.