Yep. No question. Known this since the day it happened.

Part of the many hats I wore in the Air Force was Aircraft Mishap Investigator. Aside from being deployed many times and seeing up close what a missile strike looked like, every single thing I was taught on tell-tales for an aircraft mishap were missing from the Pentagon site. Contrarily, everything I ever learned of what to look for as a missile strike WAS there.

Pentagon WAS hit by a cruise missile and no one can change my mind on that. Too much evidence.