Germanwings: What Happened on Flight 9525?

Germanwings Flight 9525 went down on March 24, 2015, leaving no survivors among the 150 on board. The investigation concluded that a suicidal co-pilot, Andreas Lubitz, purposely locked the plane’s pilot out of the cockpit and crashed the aircraft into the French Alps. The Lubitz family has long claimed that their son could not have committed such an act, but in recent years, a growing number of people connected to the crash have developed similar doubts about the official version of events. Follow several investigators, experts and relatives of victims as they pursue new information about the crash and their perspectives shift in surprising ways.