German police have been searching for years for Jan Marsalek, who is suspected of having embezzled billions of euros through Wirecard and thought to be working as an agent for the Russian intelligence agency FSB. DER SPIEGEL tracked him down in Moscow.
Der Spiegel cooperated with The Insider, an independent exiled Russian media outlet, on this investigation. Here is its English article fyi:
Our Jan in Moscow: The secret Russian life of Europe’s most notorious fugitive-turned-spy
Older report on Marsalek are here if interested.