that based on available evidence, someone in the cockpit deliberately directed the aircraft's movements before it vanished. the plane flew towards specific navigational waypoints, crossing indonesian territory, and eventually towards the south indian ocean. but it will take finding the plane to come to any real conclusions about what happened. >> neither the intelligence report nor the theories, the speculative theories of kinds of failures of that aircraft, aren't really helpful until we have more than the flapper, we actually have significant pieces of the aircraft and the flight data recorder, the cockpit voice recorder. >> reporter: investigators have already taken a deep dive into the pilot's background, scrubbed computers hard drives, inspected the captains' flight simulator, studied their body language on airport security cameras, but never found any evidence to suggest anyone on board posed an obvious risk. the search for the rest of the