Unless LE has something on video, they would not know what Missy saw .
this is kind of my point. no-one would know what missy saw, unless LE has something, or an absence of something, on video.
BB claimed to know what missy did or did not see. Therefore in my opinion he either has that knowledge through some strange mechanism not accounted for, or LE shared with him some video or information about video, that they have not shared with us.