German wing co-pilot deliberately crashed the plane

According to breaking news report, the co-pilot of the doomed Germanwing flight deliberately crashed the plane on March 24th, this is according the chief investigator who just held a press conference explaining what happened. The prosecutor said the Chief pilot asked the co-pilot to take over the controls of the plane so he could go ease himself. While alone, the co-pilot locked the door and deliberately manipulated the flight monitoring controls to accelerate the descent of the flight. 

He refused to open the door of the cockpit to the pilot when he returned and began knocking frantically on the cockpit door. The co-pilot used a button to cause the plane to lose altitude and crash. He never spoke a word during the last 10mins before the plane crashed and didn't respond to air traffic control.
The prosecutor said there was no indication that the co-pilot was unwell. He has been identified as 28 year old Andreas Lubitz from Germany. He is not known to have any links to terrorism or extremists.
The prosecutor said screams from passengers could be heard on the recording in the final seconds. He said they all knew what was about to happen in the last moments and that all 150 souls died instantly. 

culled from cnn.com