Europe Germanwings crash co-pilot practiced slow descent before, report finds

Authorities are still puzzling over why co-pilot Andreas Lubitz sent the Barcelona-to-Dusseldorf flight straight into the French Alps on March 24, killing all 150 people on board.

The co-pilot of Germanwings Flight 9525 appeared to have practiced a controlled descent on his flight into Barcelona just two hours before he intentionally crashed the A320 jet into a mountainside on the return flight to Dusseldorf, air accident investigators said Wednesday.