The co-pilot was alone at the controls,” said Brice
Robin, the Marseille prosecutor, of what he called Lubitz's deliberate desire to destroy the plane.
Evidence from investigators' analysis of the cockpit voice recorder suggests that the aircraft was intentionally crashed by the co-pilot,
28-year old Andreas Lubitz, who at some point during the flight was left alone in the cockpit.
The cockpit voice recording strongly suggests that Lubitz, who is thought to have been from Montabaur,
a town in Rhineland-Palatinate, western Germany,“profited from the captain's absence” when he had left the cockpit to use the facilities.