Here is some of Gremlins Research into what happened to Barry Jennings and Mr Hess. They were top officials that were based inside the emergency room in WTC 7 on the 23rd floor. They both report being trapped after explosions went off in WTC 7!
PDF 25 Barry Jennings and Mr Hess
Here is another video which includes Barry Jennings talking about stepping over bodies in WTC 7 at 4m18s into the video.