Who is Barry Jennings? World trade center 9/11

Mr. Jennings was a whistleblower who was inside WTC building 7 on 9/11. He reported multiple explosions before the building fell. He reported that the lobby was completely blown out and that he had to step over dead bodies on the way out of the building.

Barry was an outspoken leader in the 9/11 movement when it first started. He mysteriously died after a few years of speaking out.