The buildings "parts" collapsed... which means that what wast supporting those parts lost its stuctural /axial capacity. Id the support lost was "asymmetrical" a moment will develop and the part will tip as well as fall. Parts were interconnected... the building was no a structure of jenga blocks.
What I see is:
The EPH collapses and there are clues that it and the floors/structure below it collapsed down inside the tower
What I can't see but what I suspect is:
That collapsed east side material began a progressive failure east to west low down in the building and likely involved the massive transfer structures on floors 5 -7. This led to the "undermining" / destruction of all axial load paths inside the tower..
and tI can see the roof structures collapse as the facade starts to drop... as FF
It drops 100+ feet with no resistance so it accelerates at about G. Then the "shell",, curtain wall and moment frame hit ground and slow in a crush up.
The east side of the north face does no LURCH north... it is pushed north because of the asymmetry of the plan form and that the mass collapse began there AND it was supporting a 2 way slab.
++++
A CD would have to imitate the sequence of the initial failures (wherever they were in the east side)... the so called straw that broke the camel's back. It may require... as CD often does... pre weakening of beams and columns to control / direct the way the collapse progresses.