According to CNN, medical records show that Andreas Lubitz, the co-pilot who deliberately crashed a Germanwings jet last week, previously had been treated for suicidal tendencies. 


Last week it was revealed through black box voice recordings that Lubitz locked his captain out of the cockpit after the captain stepped out to use the restroom, and then intentionally crashed the plane into the French Alps, killing himself and all 149 people on board. 
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Christoph Kumpa, a spokesperson for the prosecutor's office, said that Lubitz underwent psychotherapy for suicidal tendencies before attaining his pilot's license. 

Lubitz passed an annual pilot's medical examination in 2014 to renew his license, CNN reported, but that test does not take mental health into consideration. 

Investigators have been unable to find any evidence -- written or otherwise -- indicating a motive or proving that Lubitz had exhibited suicidal behavior preceding the deadly crash.