I am working on a project regarding the German serial killer Friedrich Schumann (*1893 in Spandau; †August 1921, executed JVA Plötzensee). In my research I found that he supposedly worked at the "RAW in Wusterhausen"- "Reichsbahnausbesserungswerk" a train refitting station.
Here's the problem though:
He was said to have walked to work, and approach his victims in the woods on said walk. If we take Wusterhausen/Dosse, that would make that a 13 hour trip, each way. Somehow I find that highly unlikely, especially in 1916-1920. Furthermore I simply cannot find any data regarding such a station being operated in or around Wusterhausen/Dosse, nor in "Königs Wusterhausen". There was a RAW station planned in Falkenhagen, which would fit the area Schumann was active in, but said station only went online in 1938. 17 years after his arrest and execution. It also didn't really do trains. What I could glean from the archives the RAW in Falkenhagen/Albrechtshof was quickly refitted to repair tanks and trucks.
Schumann's work information, which is repeated by newspapers (example), articles, 'serious' books (example: "Crime and Criminal Justice in Modern Germany", 2009) and podcasts seemingly stems from Blazek, Matthias: "Karl Großmann und Friedrich Schumann: Zwei Serienmörder in den zwanziger Jahren", Stuttgart, 2009, p. 111, who sadly cites no source.
Kriminalrat Gennat only lists him as "locksmith employed by the Bahn" in his "Zentralkartei".
I was able to dig up some newspaper articles of the time, but they didn't really help either.
So I am kind of stuck, maybe someone has some new input or could point me towards an angle I haven't looked at yet?
I think it is most likely he worked at the station in Grunewald, as it is close enough to walk but it does not quite fit the area he was active in.