How about any of his friends dieing of AIDS?
He likes the young crowd, but it's a very special young crowd ~ these guys like teenyboppers ~ eventually we are going to trace our route through one or more of the gay "kids" mixed up in this, and we will discover a bunch of 12 year olds at the end.
Ya' see, Foley didn't need to take this "to the Hill" ~ by contacting his targets only through ex-pages, he was able to make sure he had a wide variety of sources, all of which were NOT in the DC area.
I suspect a set one with one of two scenarios. They were sexing up their contacts for a video or book and the other much more sinister......BLACKMAIL
Howie Carr cited a story in the New York Daily News about a long-time partner of Foley's -- a dermatologist (I don't think many dermatologists are minors). I think I've seen a reference to other adult partners, but I don't recall where.