A Flight 93 flight simulation

This flight is a exploration of what i figure was the intended flight plan for the events of September 11th, 2001.
The first parts of the flight are just positioning but represent a pretty good time scale of the actual flight, The main interest is in the insert point for the FMC to start the great circle GPS path. I was wondering what that flight would have looked like if it continued instead turning suddenly and returning to PA air space.
I used the historic map to place my insert point as close as i could to the data, The first time i did it a few year ago... The plane (777) flew directly over the Willis tower.

This flight only required 3 minutes of corrections at the last few to hit that building, Other wise, the entire flight after N43 (Braden) was all flown by the autopilot.
Most of that flight would have looked legit save the odd depart from normal TOD decent profile... But i am pretty sure i am right as to the intended target.

I wonder why the authorities did so much to avoid saying what i am saying here. The Willis Tower and the WTC towers were both built in the exact same manner... And had a lot of the same elements involved. Our luck is, The Willis is still around to investigate.