[Bobjork]

The latest news (and not only from the media but from different internal sources I know) is that the cleaner might be innocent. The train might have been parked with the safety pedal (dead mans pedal) pushed down and the lever in Neutral to have it parked with released brakes to avoid the brakes to freeze causing the train to get stuck. In this mode the train will start if you pull the lever forward. And that can happen by mistake when you enter the car through the drivers cab. You need to push the drivers seat forward to pass through the door. And the seat can push the lever forward.

The injured woman is not yet questioned as she is still kept under sedation for her injuries.

Other sources state that she wasn't found in the drivers cab, but further back.