Germanwings Co-Pilot Andreas Lubitz Had Doctor's Note for Day of Plane Crash

germanwings REUTERS/Ralph OrlowskiGerman police officers carry bags out of a house believed to belong to the parents of crashed Germanwings flight 4U 9524 co-pilot Andreas Lubitz in Montabaur, March 26, 2015.

germanwings REUTERS/Ralph OrlowskiGerman police officers carry bags out of a house believed to belong to the parents of crashed Germanwings flight 4U 9524 co-pilot Andreas Lubitz in Montabaur, March 26, 2015.

Numerous airlines hastily changed their policies Thursday to require that two crew members be in the cockpit at all times, after the co-pilot of a Germanwings flight apparently deliberately crashed a plane, killing 150 people, after having locked out

germanwings REUTERS/Ralph OrlowskiGerman police officers carry bags out of a house believed to belong to the parents of crashed Germanwings flight 4U 9524 co-pilot Andreas Lubitz in Montabaur, March 26, 2015.

germanwings REUTERS/Ralph OrlowskiGerman police officers carry bags out of a house believed to belong to the parents of crashed Germanwings flight 4U 9524 co-pilot Andreas Lubitz in Montabaur, March 26, 2015.