The IDF did not take this building down, at least not by airstrike or artillery. If you look at the video, the explosions from demolition charges can be very clearly seen, top to bottom on the building. Look at the building, ignore the explosions outside; they're theater. The clean slice collapse of the building is also confirmation of the demolition charges doing their job. The second explosion is the same, with demolition charges going off prior to the section slicing off. It's more then obvious, right there in plain view, and they're so confident that no one will question it that they don't even make a reesonable effort to conceal it. So too, if you look at photos of the building prior to the demolition, it was clearly gutted and abandoned... no one needed to be warned to leave.