Malaysian Airlines Flight 370 was supposed to be a routine trip: A redeye from Kuala Lumpur to Beijing, with 239 passengers and crew on board. But shortly after takeoff on a calm 2014 night, MH370 vanished from radar screens for good. The shocking disappearance of a commercial airliner made headlines, sparked riots, plunged the passengers' next of kin into a nightmare, and generated a global search for answers that never came.