That they did not know this was a marriage in crisis, that they were unaware that relatives said she had been threatened, worried about his behavior and nothing about the level of gun violence, but the school said they weren't sure of any of this, so when he walked up to that front entrance area, he signed in as the protocol, and they said it's not unusual for a spouse to say they are dropping something off for their spouse at the school. let take a listen. >> the school has external surveillance video, and when we reviewed that video it shows that he tried another door first, and that door wa...