u/BubbasSouthernShrimp

Lt. Col. Timothy Duffy, call sign "Duff," was a fighter pilot on the morning of 9/11, the first responder over NYC to guard the skies. Spotted by WPIX-TV Air11 Helicopter.

This man's sadness always stood out to me. From Mark LaGanga's footage.

Source

Source: https://youtu.be/MyDplESHI4E?si=lvOqMQjWpwv3r2ba

Someone falls from the North Tower. Photo by NYPD Photographer Walter Taylor.

I'm curious if the people at Ladder Company 10 are reacting to a South Tower Faller? Given their vantage point on Liberty Street, they would have been on the side closest to them. The clock inside appears to be around 9:20 a.m. Does anyone have more context for their reactions?