Co-pilot Andreas Lubitz.
`He was a completely normal guy,` said Klaus Radke, head of the local flying club where Andreas received his first flying license many years ago.
`I know him, or I can say I’m familiar with him, a lovely, cheerful and polite young man,` Reuters quoted him as adding.
Adreas’s small town of Montabaur, home to 12,000 people, is located in western Germany.
Andreas has a very active lifestyle, likes running marathons, pop music and nightclubs, according to his Facebook profile.
`I’m speechless. I don’t know how to explain this. Knowing Andreas, this is beyond my imagination,` said Peter Ruecker, a longtime member of the flying club.
The club hung a black ribbon on its website with the flight number and Andreas’ name.
Germanwings said Adreas joined the airline in September 2013, immediately after undergoing training, and had 630 flight hours.
Andreas was trained at the pilot academy of the Lufthansa group, owner of the low-cost airline Germanwings.
Police in front of the house believed to belong to Andreas in Montabaur, western Germany.
Officials cannot explain why this co-pilot intentionally locked the captain out of the cockpit and controlled the plane to lower altitude and crash into the mountain on March 24.
Under German aviation law, pilots can temporarily leave the cockpit at certain times and under certain circumstances, such as when the plane is at cruising altitude.
Lufthansa said the cockpit door can be opened from the outside with a code, according to regulations introduced after the 9/11 terrorist attacks in the US.
Lufthansa CEO Carsten Spohr said the airline’s staff were `completely speechless` and `extremely shocked` to learn about the actions of co-pilot Adreas.
`I couldn’t imagine the situation could get that bad,` he said.
German Transport Minister Alexander Dobrindt also said that the latest details about flight 4U 9525 were `more than shocking`.
Spanish Prime Minister Mariano Rajoy wrote on Twitter that he was extremely shocked by the new information from investigators.
Hannah