The burden of proof is not on the Truther's, but the people trying to convince us that there was a plane that crashed into the Pentagon. Whole story, not just a section.
You are the ones making the claim - you must them compile tthe evidence to support it
I mean evidence which can be subject to various tests for logical consistency or forensics
Not nutabars on the internet
We have photos of aircraft debris both on the lawn outside, inside the building - debris with serial numbers traced
to the missing aircraft
Human remains belonging to people known to be aircraft were recovered from the building - how did they get
there?
Try reading book "FIREFIGHT" - authors interviewed 150 of the Firefighters/rescue personnel who put out the fires
and later searched the rubble to recover the remains
.....

