That was GZ's arm. :what:
No, the picture I believe Emeralgem was referring to was from some of the media coverage the night of the shooting. Off to one side, partly behind one of the panels screening the back patios of one of the townhouses was a shape on the ground covered by a yellow tarp or blanket.
In the thread where that image was posted there was speculation that the yellow covered object could have been Trayvon's body but there was no verification.
This was many, many threads ago and I couldn't even begin to guess how far back that was. It had to be fairly early along in the list of threads, though.