1. Maine and NH also have veteran plates---that are white background---Maine's has an American flag on it, I think. There are tons and tons of those on the roads up here.
2. I had the impression that it was a Navy decal/sticker on the plate or frame of plate. Again, though, lots and lots of those up here. The Naval Shipyard is a huge employer, lots of current Navy, Coast Guard, Marine etc PLUS lots of retired who stick around and work as contractors at the Shipyard, or simply stay up here and go on to other jobs but still have decals from their service time on the cars. Add to that, that I believe most personnel seem to live off base....
3. We are close to 95---I like to joke it our only straight road---but it would not be intuitive or natural to get off the highway and end up where the little boy did and there would be plenty of other quicker places to leave the body right off the highway.
4. It sure seems like whoever placed him knew he would be found pretty quickly, so my guess would be that he/she/they did use 95 to head north to Canada or south to the rest of the East Coast and are quite gone. Who would continue to stick around?? So who hasn't been seen this week at the Shipyard or their job??
5. The weather has been terrible up here--raining, wet, super chilly, so I cannot imagine anyone camping by desire this past weekend, but I pass a couple of campgrounds regularly on those roads and am struck by how close they are to where the body was found:
http://maps.google.com/maps?f=d&source=s_d&saddr=Indian+Rivers+Rd&daddr=South+Berwick,+100+Dennett+Road,+ME+to:43.288366,-70.788135&geocode=FUjekgIdWWHH-w%3BFfBylAIdhZnI-ymVLzQjZ6HiiTF7T917h6S0kQ%3BFS6HlAId2dvH-w&hl=en&mra=dme&mrsp=0&sz=15&sll=43.176046,-70.812078&sspn=0.017495,0.038581&ie=UTF8&t=h&z=15
A is Indian River Campground in Eliot and C is Beaver Dam Campground in Berwick.
Just MOO and speculation thrown in for good measure!