Wow. I have never heard the boyfriend part as well as that she was there in the restaurant long enough to be eating/consuming something. That adds some more color to the story. I agree with rosefromangels that age (or near her age) isn't a solid indicator of who could have been her boyfriend. If she WAS under 18 and her boyfriend in prison was older, say, in his 20s-30s, it's obvious why he may have denied knowing or recognizing her to avoid exposing himself as a child predator or being involved with a minor. If it were true she was going to visit her boyfriend, I wonder if her boyfriend was possibly involved with another girl as well and she somehow crossed paths with WCJD and became jealous and she is the one who killed her - only entertaining this idea since no male DNA was found on or in WCJD and it was once speculated it could have been a woman who killed her because of this. After typing that out, it does sound kind of far-fetched and extremely specific, but anything is possible.