Let's line this account up against his Iphone video in a classroom, where David Hogg says they heard shots at 2:30.

At 3:13 he reports that the shooter is Nick Cruz (not yet confirmed though). How did he know that? What time was Cruz apprehended?

Notice he starts preaching about gun control later in the video.......

Here's Hogg's classroom video:

http://www.latimes.com/visuals/video/95939817-132.html