The preceding has been an exercise in nit picking, the fact is that because the best fit curve for the data describes 9.8 m/s^2 and because of the tonnage of the bit that was observed falling, one can not expect deviations in the data as was plotted, therefore the data points that fall outside the curve are anomalies and can be attributed to camera vibration or other factors that cause the data points to deviate from the true curve. With that now out of the way, the fact that many tons of material, no matter what excuse is attempted here, the fact is that there was sufficient material in the North & West walls of WTC7 to have what was observed falling keep its shape as it fell and vertical nature of the event can be confirmed by observing the line of the north/west corner of the building.
Events such as controlled demolitions have components such as this, that is vertical descent of the building, this was a planned event, somebody intended for the building to do exactly what it did.
Woo ... you really ARE afraid to confront Gamolon directly, Princess. Each time he has accepted your challenge to play "Science" you have run away and hidden FOR WEEKS. Either stand behind your silliness (and get your butt kicked) or STFU.