Passenger Plane Crashes in French Alps.

I know we know this already, but the headline gets me to thinking that whoever these doctors are who are monitoring pilots should be informing whomever sets up flight staffs... given tendencies, not only re pilots, but plenty of people in jobs with danger possible*, to hide such a notice.

The co-pilot wasn't evil he was mentally ill

Might well be that they know more than the investigating prosecution and the doctors/hospital, who signed the sick leave.

The fact that they have not found a suicide note yet is a big problem for your theory

The Germanwings co-pilot thought to have deliberately crashed his Airbus in the French Alps, killing 150 people, predicted "one day everyone will know my name", his ex-girlfriend says.

In an interview with Germany's Bild newspaper, she recalled a comment Andreas Lubitz made last year.

"One day I'm going to do something that will change the whole system, and everyone will know my name and remember," he told her.

Flight 4U 9525 crashed on Tuesday.

The woman, a 26-year-old flight attendant who flew with Mr Lubitz for five months last year, was "very shocked" when she heard the news, the papers says.

If Mr Lubitz deliberately brought down the plane, "it is because he understood that because of his health problems, his big dream of a job at Lufthansa, as captain and as a long-haul pilot was practically impossible," she told Bild.

German prosecutors say they found medical documents at Mr Lubitz's house suggesting an existing illness and evidence of medical treatment. They found torn-up sick notes, one of them for the day of the crash.

They say he seems to have concealed his illness from his employers.

His former girlfriend told Bild they separated, "because it became increasingly clear that he had a problem".

She said he was plagued by nightmares and would at times wake up screaming "we're going down".

A hospital in the German city of Duesseldorf has confirmed Mr Lubitz was a patient there recently but it denied media reports that he had been treated for depression.

The theory that a mental illness such as depression had affected the co-pilot was suggested by German media, quoting internal aviation authority documents.

They said he had suffered a serious depressive episode while training in 2009.
He reportedly went on to receive treatment for a year-and-a-half and was recommended regular psychological assessment.

Mr Lubitz's employers insisted that he had only been allowed to resume training after his suitability was "re-established".

Pilots have to have regular assessments by doctors to continue flying.

The problem is that they might be able to fool the doctor by lying, but in this case the doctor wasn't fooled. He was a civilian doctor though.

No, the problem is a Doctor has no legal requirement to report any illness to his company .