French prosecutors have identified 28-year-old Andreas Lubitz as the co-pilot responsible for this week's deadly Germanwings plane crash in the French Alps. Lubitz barricaded himself in the cockpit and "intentionally" sent the plane full speed into a mountain in the French Alps, ignoring the pilot's frantic pounding on the door and the screams of terror from passengers, a prosecutor said Thursday. Click through this gallery of photos to learn new details emerging about Lubitz and the plane crash.

Germanwings CEO: Co-pilot trained in Arizona

A spokesperson told ABC News that Andreas Lubitz had some of his training at Airline Training Center, which is owned by Germanwings' parent company Lufthansa, KNXV reported.  

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Lufthansa has other facilities in Germany, Switzerland and Austria, Good Morning America reported.

ATCA's website states that German pilots go through their initial flight training at the Arizona site. The training lasts over four months according to KNXV.

The BBC reported Lubitz had taking a break from his training six years ago, but restarted after "the suitability of the candidate was re-established."

Lubitz, who was 28-years-old, was cleared to fly without any warnings, Carsten Spohr, CEO of Lufthansa said.

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