http://news.yahoo.com/germanwings-co-pilot-had-630-hours-flying-experience-081707009.html
Lufthansa could neither confirm nor deny reports that one of the two pilots on the doomed flight was locked out of the cockpit before the plane went down.
A source close to the investigation told AFP that cockpit recordings recovered from the crash site indicated one of the seats in the cockpit was pushed back and the door opened and closed.
Then knocking is heard, said the source, adding "there was no more conversation from that point until the crash".