@ MartinCH:
Hubschrauberunglück: Polizei auf dem Roßfeld - Reutlinger General-Anzeiger - Region Reutlingen - Neckar + Erms
in this article the 79 yeary old guy (the owner) is confirmed as the pilot (PIC), the other "younger" guy (57) as his co-pilot.
Additionally I got the same information from my guys of one of the rescue units which where in duty at the airfield during the accident (I'm the leader of one of the deployed units).
...waiting for the investigation report of the BFU (agency for aviation accident investigation)