You claim there are documents - how many? 4,000? Has anyone bothered to scan this documents and put them on the web, or list the names on the documents?
If they have the names, then DNA tests can be performed immediately, ascertaining that the documents are valid.
Why not have a document with DNA confirmation, and then forensic evidence for the individual?
If they have the documents, yet the bodies are still in storage after all these years - 8! - then the documents are likely FAKES or had been planted. There's no reason for a body to still be in the unidentified category if they've had documentation on it years ago.
Post them! And don't forget to get the LIST (name, ID, cause of death, etc.) of all the bodies -- 4,000+/-50, nothing esle. And please spare me the links -- they don't respond!