If there were humans still in there they were the crispy variety.
This is the answer I went and found myself, but thanks anyway
"firemen reported that at first the fires did not seem to be large, but as the day wore on, they got much bigger, so much so they could no longer fight them."
Other Fire Department officials thought collapse was almost certain:
"...Captain Varriale told Chief Coloe and myself that 7 World Trade Center was badly damaged on the south side and definitely in danger of collapse. Chief Coloe said we were going to evacuate the collapse zone around 7 World Trade Center, which we did."[18]
"The biggest decision we had to make was to clear the area and create a collapse zone around the severely damaged [WTC Building 7]. A number of fire officers and companies assessed the damage to the building. The appraisals indicated that the building's integrity was in serious doubt."[19]
It was a genuine question, but I found an answer for myself, I just thought one of the smarter guys would know the answer.
"The biggest decision we had to make was to clear the area and create a collapse zone around the severely damaged [WTC Building 7]. A number of fire officers and companies assessed the damage to the building. The appraisals indicated that the building's integrity was in serious doubt."[19]
It was a genuine question, but I found an answer for myself, I just thought one of the smarter guys would know the answer.