From the March 14 edition of Fox News' Tucker Carlson Tonight:
TUCKER CARLSON (HOST): Dan Bongino is a former NYPD officer and a Secret Service agent, and he joins us tonight from Florida. Dan, what do we know about this?
DAN BONGINO: Well, it appears, obviously, that this student had some knowledge of the school, having been a former student there, probably enabled him to take advantage, Tucker, of the terrain features. I mean, when you're involved in an attack like this, as horrific as this is, the ability to know what is around the next corner was obviously beneficial to him. And it also speaks to another issue here which is that access control, his familiarity with the school and the grounds enabled him to access the grounds. And it's something I have said repeatedly that conflating access control with security is a big mistake.