9/11 conspiricy theories?

The building that got bombed several years before the 9-1-1 disaster, had a bomb in the lobby I think. This was a warning sign and Mike Evans knew what was going on but the president didn't pay any attention to him. He's the one who has been writing best sellers to tell it all. He wrote "American prophecies" and "Beyond Iraq" and "The Final Move Beyond Iraq", etc.