If this were my son, I would definitely hire an attorney. But if he had been in a long-term relationship with a missing girl, I think I would go to the location and provide support to both my son and the girl's parents. I can't understand why he left town either. Maybe the pressure from the community was really intense. The article below says that JW is "represented by Bloomington attorney Larry Lozano", so maybe he plans on returning. I just don't get the feeling he was involved, but it's hard to rule him out because he is the boyfriend.
http://www.fox59.com/news/wxin-surv...spierer-last-spotted-20110612,0,7227876.story
I just have to think that it's hard for him to be around LS's parents. Even being completely innocent, the fact he's listed as a POI would send awkward vibes towards the parents and other volunteers.
It's hard to know exactly what I'd do in his position. But him going home is insignificant in my opinion. I'm much more suspicious of the other guys involved and for good reason..