let's begin with you, though, jason on the scene, and more on the fateful decision to wait. what more do you know he? >> a decision, pamela, the governor called quote inexcusable. he also said it was unacceptable. he says he was, like the rest of the public, misled about exactly what happened here at the school with law enforcement. >> it was a of the wrong decision, period. >> tonight, a damning new admission from texas' authorities. the incident commander made the decision not to immediately enter the classroom where the gunman was hiding. >> a decision was made that this was a barricaded subject. situation, there was time to retrieve the keys and wait for a tactical team with the equipment to -- to go ahead and breach the door and take on the subject at that point. >> reporter: officials explained how the shooter got into the school. >> where we know the -- the shooter entered -- ramos -- was propped open by a teacher. >> reporter: investigators clarifying the time lien as