I'd say it's a fair bet she is. If I were a betting man.

[Having another look at the pictures.]

Well, it's not my John, that's for sure. I wonder where the extra kid fits into the picture. So far, it's the only thing that doesn't match up.

[And after a moment's thought, an idea occurs to him.]

Maybe it's one of those Internet friends John's always talking about? That's how he knows Rose, isn't it?