According to breaking news report, the co-pilot of the ill-fated 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.