AP Photo/Wilfredo Lee OceanGate CEO Stockton Rush, one of five passengers who died on board the Titan submersible, previously said he broke "some rules" when designing and building the vessel.

The Coast Guard said that the debris that they found was consistent with the catastrophic loss of pressure in the 'Titan' chamber ... and Adult Following Boat Capsize in Florida: 'Heartbreaking ...

The expedition was supposed to take them to the grave of the British ocean ... that Titan was made from carbon fibre, which is not an appropriate material – and has never been – to build ...