Perhaps there was a sinkhole under the building after all? A
large hole has been dug near the back left part of the site,
and it appears there's some kind of bracing in there now. Plus
some kind of coring or drilling machine is parked near the perimeter
To all extent, Horizons
is now gone. I'm not sure if I'll continue updates, since the
purpose, documenting the destruction of Horizons, is now done.
It's been tragic.