The pilot, whose name has not yet been released, was preparing a standard landing plan for dusseldorf and the pilot asked the co-pilot to take over and sounds indicate that the pilot left the cabin and the cockpit door closed. at this stage, quoting again, the co-pilot is in control alone, the prosecutor said. it is when he is alone that the co-pilot manipulates the flight monitoring system to activate the descent of the plane. the prosecutor said, this action could only have been voluntary. and then later, the captain is heard pleading to get back into the cockpit, but the co-pilot, heard bre...