Maritime misfortune: Let's dive into eventful lives of Titan Five victims

The submersible Titan Five that dived into the North Atlantic Ocean to tour the historic Titanic shipwreck and never resurfaced likely imploded under the immense pressure of water, leaving a five-member crew dead, announced US Coast Guard late Thursday.

The OceanGate Expedition-owned submersible embarked upon its dive Sunday and fell off the grid just after an hour and a half into its journey to the world's most famous shipwreck, which lies 12,000 ft under the sea.

Here is what we know about the passengers:

Shahzada Dawood, 48 and his son, 19

Engro Board of Directors Vice Chairman Shahzada Dawood was a leading voice for institutionalising key international networks, including the World Economic Forum (WEF).

He served as a Trustee on the Boards of both Engro Foundation and The Dawood Foundation and he joined the Board of Trustees of the SETI Institute in 2020.

He also served as director across boards of various companies within the Dawood Group, including Dawood Hercules Corporation Ltd and Dawood Lawrencepur Ltd.

In a statement, the Dawood family said Shahzada Dawood and his son, Suleman, "had embarked on a journey to visit the remnants of the Titanic in the Atlantic Ocean".

Billionaire Hamish Harding, 58

Action Aviation Chairman Hamish Harding took to social media Sunday to confirm that he was joining OceanGate Expeditions as a "mission specialist".

"Due to bad weather in Newfoundland, Canada, the expedition was likely to be the only manned mission to the wreck of the Titanic this year," he said.

Harding was based in the United Arab Emirates, along with his company's headquarters. Action Aviation is a sales and operations company offering a range of services in the business aviation industry.

Harding was a self-proclaimed world explorer. He held a Guinness world record for being the fastest person to go around the world in an aircraft and also participated in the fifth human space flight by the aerospace company founded by Jeff Bezos.

The 58-year-old was confirmed as one of the passengers of the missing submersible after his stepson Brian Szasz posted on Facebook. Brian wrote that Harding was in his "thoughts and prayers".

Paul-Henry Nargeolet, 77

French submersible pilot Paul-Henry Nargeolet was a former commander in the French Navy with a career spanning 25 years.

He was the captain of the deep submergence group of the navy during his years in service.

The 77-year-old then joined the French Institute for Research and Exploitation of the Sea (IFREMER).

Nargeolet was involved in several scientific trips worldwide, and the Titanic site was one of his many visits.

Stockton Rush, 61

OceanGate CEO and Founder Stockton Rush was also on board the vessel.

He was a trained pilot who became a founder and member of the board of trustees of OceanGate Foundation — a non-profit organisation.

In a previous interview, Rush had discussed the Titanic wreck.

"What strikes you is how beautiful it is," he said.

"You don't normally see that on a shipwreck. It is an amazingly beautiful wreck."

He said: "You can see inside; we dipped down and saw the grand staircase and some of the chandeliers still hanging.

"Next year we are hoping to send a small robot inside but for now we stay on the outside."