At least four jihadist fighters with connections to Switzerland have been uncovered in Islamic State personnel files that have been obtained by the media.
https://tp.srgssr.ch/p/swi/embed?urn=urn:swi:video:42025764&start=
The huge haul of papers documenting 22,000 IS recruits was first seen by German reporters before being handed to Swiss public television, SRF, and the Tages-Anzeiger newspaper. They give real names, the fighting pseudonyms of individuals, their religious experience, family details, where they are from and have lived and whether they have volunteered as fighters or suicide bombers.
Source: Files reveal Swiss links to Islamic State fighters – SWI swissinfo.ch