There is a video on YouTube that is pretty good footage of a camera crew sneaking around behind the walls to try to get shots of the place SS's body was found. They even rode a train past the spot to catch it:
Sarai Sierra Katilin Ä°zi Kanlı TaÅta - YouTube
The picture of the tracks at the body is real close to where she was found IMO.
That is really interesting footage. You can see the area is full of those thick brick arches like where her body was found. You can see the little areas with stuff like homeless people use to camp with- sheets of plastic, some garbage, cut up sticks. The area has lots of trees and bushes, so there are only narrow paths, unless you follow beside the train tracks. From the looks of those little paths, you would have to drag a body over lots of sticks, twigs, and rocks, unless you took the chance to drag it along the grass by the railroad tracks. That area is quite open and you would take a risk of being seen by a passing train. Which makes me think the body might have been transported at night.
If you look at the other excellent url for the excellent trip down Kennedy with the streetview option, I think it looks deceptively safe if you stick to the water side of the stree.
We don't really know where SS got to the other side of the wall but I'm thinking it was from the railroad tracks north of where the body was found, rather than farther south. Maybe she was photographing them or some of the little bum hovels. I don't see any graffiti on the track side of the wall. It does have an isolated, deserted look and feel to it, and it's not difficult to see vagrants are living there. Even at midday I would not want to be there.
It makes me wonder if she actually went there alone or if she did go with someone. As someone who was with other photographers in the railyards and grafffitti strewn areas of NYC, this seems an anomaly to go down there by herself.