NEW VIDEO: A passenger aboard the Flydubai flight describes the terrifying moments the plane suddenly plunged as an attack unfolded inside the cockpit. He recounts the chaos as passengers realized something was seriously wrong and details the effort to reach the cockpit and regain control of the aircraft. Officials say one pilot stabbed the other and the suspect appeared to try to crash the Tel Aviv-bound plane, which was carrying mostly Israeli passengers. Another crew member ultimately stabilized the aircraft before it made an emergency landing in Saudi Arabia. ▻