Any sort of mental issues. Lets have a look at how the investigation is unfolding. Investigators say they found what may be evidence while combing through 27yearold copilot Andreas Lubitz home. Police say they took several objects and papers possible clues as to why the German National deliberately crashed flight 9525 into the french alps. Audio from the aircrafts mangled cockpit voice recorder revealing the chilling steps lubitz took to kill all 150 on board. 30 minutes into the flight from barcelona, the captain steps out of the cockpit once the plane hit cruising altitude. Presumably to use the rest room. Lubitz now alone with the door locked reprograms the auto pilot from 30,000 feet to 100 feet. Sending the jetliner straight toward the alps. The pilot heard on the recording, first knocking, then banging on the cockpit door. Lubitz didnt utter a word investigators say and was breathing normally. Passengers only heard on the recording during the final minutes of the crash, screaming