This is the preliminary german AAIB report:
Narrative: Short after take-off the helicopter tumbled and plummeted into a building. The helicopter was immediately consumed by fire.
Type designator: AS 330J
State of registry: Germany
Mass group: 5701-27 000kg
Operation type: Passenger
Injuries:
Pilot: 1 serious
Passengers: 1 fatal
Flight phase: Take-off
All other fields in this report are unfilled.