Think they are discussing 2-3 individuals.
The Strobbe case is about two men that picked up a woman named Marian (or Marion) M. Assaulted her than ran over her with their truck. It was in 1986. They were arrested & sentenced to jail. But it looks like Strobbe was one of the cases where there was misconduct on part of DA so he may be out and about at this point. She, I believe, was a 'resident' of Memphis.
The unidentified female found in a culvert off one of the highway ramps was a young woman. She was found to be a victim of a truck driver/serial killer. Read all about him and can't recall his name. Think he was finally arrested in Texas and admitted to killing dozens of women in many States. Believe the young woman was eventually identified and was not from AR.
I don't know if any of the information at Topix relates to Laundry Lady. The Strobbe case is troubling to me though. I know this sounds wayyyyy out there. But could LL be MM? If no family claimed her, could her body have gone onto a research facility after being held for sometime in West Memphis for evidence and than mistakenly left as unidentified?? The so-called accident in MM's case occurred in 1986 but the trial was in 1987.
Wayyy out there but it sure would explain no news in 1987.
ETA
Robert Charles Browne- serial killer
http://www.dallasnews.com/sharedcontent/dws/news/nation/stories/0728dntswcolokiller.dea92d.html
David Strobbe
http://www.arwar.org/wm3/caseinformation/Harmful_Error.html