Transcript for Airline Admits It Knew About Andreas Lubitz's 'Severe Depression'
The CEO of lufthansa puts flowers at the crash where a memory chip was found with video of the last 15 seconds of the flight. The reports describe a shaky video with screaming passengers, loud metallic sound, the wings scraping a mountain before it ends and seems to align with video from the cockpit voice recorder and passengers realizing their fate. The editor of "Paris match" saying it's the worst he's ever seen. One declared it a fake. Meanwhile, a shocking admission from lufthansa. The airline revealing it did first learn that co-pilot Andreas lubitz who is believed to have brought down the plane suffered from severe depression while he was still in their pilot training school. They say he took a leave of absence from the school in 2009 and when he returned months later he shared his medical records with the airline describing a previous episode of severe depression but allowed him to resume his training and in 2013 he became a pilot. Why did they continue with their training of this person after he notified them that he had severe depression? Reporter: Investigators revealing he was treated for suicidal tendencies but the CEO of lufthansa has defended the airline's decision to let him fly and say he was medically cleared on the day of the crash. Here in the U.S., it was only a couple of years ago that the FAA changed its policy reversing its nearly 70-year stance and letting them take mild or moderate medication for depression in the cockpit.
This transcript has been automatically generated and may not be 100% accurate.