from page 14 of that thread (quoting b/c it's a decent synopsis of the entire thread and there's no way to link to a post on that messageboard):
"Upon reviewing information in this thread, jasonm111 believes he may have had an acquaintance/friendship with deceased Jason Doe for a brief period of time 18 years ago. Jasonm111 also believes he may remember the approximate address or neighborhood of where Jason Does foster parents live(d).
In the unlikely yet plausible event that jasonm111s is accurate in his belief, his recollection is that Jason Doe had an estranged relationship with his foster parents and therefore ran away from home in Fairfax, VA. If so, we know that Jason Doe loved the Grateful Dead band and traveled to see them at concerts when ever possible. Along the way, he *may* have met up with chandrentz, who believes he may have picked up hitchhiker Jason Doe along with two girls (both named Caroline -- what are the odds of that) while attending a Dead show at Giants Stadium, whereby the four of them traveled from Giants Stadium to Albany(?) to DC, where they were then separated at RFK due either lack of money or other reasons (ie. desire to disconnect from certain drugs). "
we need to get one of those guys to forward the information they think they have to LE before they chicken out and drop it without revealing whatever they think they know. the professionals can figure out who lived where and when and determine if this is our guy.