From the Daily Mail online:
Killer co-pilot Andreas Lubitz may have crashed his plane in the Alps due to fears he was about to lose his licence on medical grounds, it was claimed today.
Andreas Lubitz locked the captain out of the cockpit of a Airbus A320 on Tuesday before setting the airliner's controls to descend into a rocky valley, obliterating the plane and killing all 150 people on board.
Investigators revealed today that medical sign-off notes were found at Lubitz's home - including one for the day of the disaster - and Dusseldorf University Hospital confirmed he had been a patient there over the past two months, although it would not disclose his condition.
Described as a man whose life-long obsession had been to become a pilot, it has been suggested he may have feared his flying licence - due to expire in just three months time - might not be renewed on medical grounds.
Friends have told how Lubitz had a life-long obsession with flight, posting pictures of planes all over his walls as a child and taking gliding lessons at the age of just 14.
Lubitz had built his whole life around becoming a pilot - with one friend saying 'would have died' if he had not have passed his flying exams - and even became a flight attendant while he waited to start his training.
He was facing a potential medical examination ahead of his licence renewal and it is thought he may have feared mental or other health problems would bring an end to his dream.
http://www.dailymail.co.uk/news/article-3013743/Germanwings-pilot-slipped-safety-net-devastating-consequences.html#ixzz3VblyPisH
So yeah, one in a million could actually do what he did out of despair. An extremist of some kind.
Shit happens, or should anyone with a depressive condition be barred from working (i.e. lots and lots of people) ?