Not sure if this has been talked about yet, there are a lot of pages and I'm new to ATS (hello all!).
Don't how concrete this is, but it is worth checking out.
The CIA, of all orgs, went to VA Tech for recruitment purposes, twice. Here's the URL
www.godlikeproductions.com.../20/07&forum=1
Not only that, but someone posted a link to a picture of someone who looks a lot like Cho at the Virginia Tech US Naval ROTC field excercises which
took place in 2006 (bottom post, 2nd person from right).
I've taken that picture, cropped and scaled it with Genuine Fractals to make a bigger, clearer picture. See for yourself. Here's the URL
i23.photobucket.com...
I mean, it could be anyone, but it is a spitting image of Cho.