The photo in the set of Trayvon towering over a petite girl in what looks like it could be a public setting has been released publicly before, unless I'm mistaken.
I'm pretty sure CTH ran it when they were claiming to gave found "DeeDee's" social media, back when they were basing everything on the lie that "DeeDee" was only 16 at the time of the shooting.
If this is indeed the photo that he's referring to (and I think it's very likely), then I'm not sure why White states she's underage.
Just an assumption, based on the context of the photo, that that she's the same age as Trayvon? Or do they have her ID'ed?