Deutsche Lufthansa Chief Executive Officer Carsten Spohr returned to the scene of the carrier's worst-ever crash, a day after disclosing that the pilot blamed for the deaths revealed in 2009 that he was fighting depression.

"Several years ago, before receiving his pilot's license, the co-pilot was in psychological treatment for a longer period for observable suicidal tendencies," Dusseldorf prosecutors, who are leading the German investigation, said Monday.

Experts agree there are numerous reasons people take their own lives. But what about a suicidal pilot who takes a plane full of passengers with him?

SEYNE, France -- The young co-pilot of the doomed Germanwings flight deliberately crashed the plane into the French Alps after locking his captain out...

The leaders of France, Germany and Spain visited a makeshift rescue base near the Germanwings air crash site Wednesday, as investigators ramped up their...

The plane, carrying 144 mainly Spanish and German passengers -- including two babies -- and six crew, was traveling from Barcelona to the western German city of Duesseldorf when it came down.