>>512889655
>there's also the fact that the grates on the basement next to the building were blown up and out (indicating that the truck explosion was timed to cover up another, more precisely targeted explosion inside the building)
check't
correck't
the explosion was INSIDE the building, likely in the basement for the grates and wiring to be blown out from underground out into the sidewalk. This explosion in the basement would have no doubt blown upward and completely cratered the inside of the building.