Apparently, his life must have taken a rather tragical turn some years ago:
http://de.netlog.com/steincarina/blog/blogid=5562291
"Ralf Tohde (Fotograf, Toningenieur). Wir hatten etwas publizieren wollen zum Thema GEMACHTE OBDACHLOSIGKEIT. Ich hatte Ralf auf dem Sozialamt Kaiser-Wilhelm-Strasse kennen gelernt. Doch dann war auch Ralf auf der Strasse zusammen geschlagen worden. Das Thema GEMACHTE OBDACHLOSIGKEIT hat scheinbar automatisch den Einsatz von Schlägern zur Folge. Ralf hatte mich in Künstlerkreise eingeführt. U.a. ins CAFE Güttes…Norbert Güttes, [...] Am 21. Oktober 2005 dann Norbert in einer Blutlache…[...] Zwischendurch, kurz nach dem Ableben meines Schriftstellerfreundes Güttes Hausbewohner Robert Mann. Am 19.Januar 2004 Ralf Thode. In allen Fällen waren Täterkreise aus Bayern angereist. [...]"
Roughly translated:
Ralf Thode (photographer, sound engineer). Originally, we had intended to publicise something around the topic of self-inflicted homelessness. I had met Ralf at the social welfare office in Kaiser Wilhelm Strasse but then Ralf had been beaten up by some bullies. The topic
self-inflicted homelessness seems to have this sort of consequence, Hooligans appearing on the Scene. Ralf had introduced me to some artists' communities, Café Güttes. Norbert Güttes (the publican) was found dead, lying in his own blood. A Little later, Norbert's neighbour Robert Mann. Finally, on 19th January 2004, Ralf Tohde. In all cases, criminals flown in from Bavaria were involved."
RIP.
Stephen