The passengers that died on the Titan submersible would have been aware of the impending catastrophe for a minute before the implosion, an expert has said. Spanish submarine expert José Luis Martín suggested the submersible lost stability due to an electrical failure that left it without propulsion, causing it to fall toward the seabed 'like an arrow vertically' with its porthole facing down. 'The Titan changed position and fell like an arrow vertically, because the 400 kilos of passengers that were in the porthole compromised the submarine. They all rushed and crowded on top of each other,' Martín added. 'Imagine...