TruthSpider, let's say you're right. Let's say that the SK knew about the road.
Check this out...
http://www.cruisinggays.com/wantagh/cruising-areas/48171-jfk-bird-sanctuary/
I attached some images of what I believe to be dudes hooking up in the parking lot of the bird sanctuary. Notice how these cars are parked backwards, probably to spot the police if they drive up on them.
I don't see any barrier that would restrict someone from going further down the road into the bird sanctuary. And there is only 1 exit - your "service road" entrance.
I can tell you I grew up near this area, spent many days at the beach and crawled all over the dunes there at Zach's Bay and I never knew that "service road" was there, or that it connected all the way to Tobay Beach. So I think if the serial killer DID in fact know about that service road, there are only two explanations - he was either an avid birder
or a deviant homosexual. I'm not using the word "deviant" negatively. It's just that hooking up with random strangers in broad daylight in public is risky (STDs, arrest). But we know our serial killer takes risks, so it somewhat fits. Perhaps using the bird sanctuary as a dumping ground excited him sexually.
Now, I've still got a problem with how JD-9098's head ended up close to the parkway, but I've looked carefully at the map of those trails where people "
Get out of [their] car and walk thru the many trails on the south side of parking area. Very cruisy and many private areas."
It seems to me that it IS possible to make you're way over the canals. There appear to be little "land bridges" on all of the north/south canals, so my assumption is that this area is actually walkable, dissimilar from the "thicket" closer to the road. So the SK could have parked in the lot, waited till all the cars were gone, walked south through the trails and deposited JD-9098's remains in the "thicket" closer to the highway. See attached file with red indicator line for a route that I believe he could have taken.
Somehow, her legs made their way into the water. It doesn't really matter how - maybe a Nor'easter flooding, maybe he threw them off a bridge. The relevant information here is the possibility that the SK knew about that road, and if so, he's probably extremely active in the "underground" gay lifestyle. After all, there was a dead transvestite found in his dumping grounds.
All of this is very speculative. It's possible that the SK never knew about that road and actually made these two dumps from Ocean Parkway. But I must admit, the road that TruthSpider is talking about is very specific. Someone would have had to travel that road to even know it was there. And it's the only "road" for miles, so pulling over randomly right there would be a stunning coincidence. The placement of a woman's head (JD#10) at the terminus of a road frequented by homosexuals seems completely coincidental or highly relevant.
So now we know (or at least can logically infer) that the serial killer is gay, assuming that the map location of where JD#10 was found is correct. He's probably still "in the closet" if he's resorting to these types of rendezvous.