Probe seeks answers on why Titanic sub imploded, killing all aboard
U.S. Coast Guard officials conceded crews are facing a daunting investigation to determine what caused the Titan submersible to implode underwater. As the search-and-rescue efforts became a recovery mission Thursday, U.S. Coast Guard officials conceded they are facing a daunting investigation to determine what caused the Titan submersible to implode underwater near the wreckage of the Titanic, killing all five explorers aboard. After searching for five days for the OceanGate Expedition vessel, Coast Guard Rear Adm. John Mauger announced that a "catastrophic event" doomed the five men aboard the minisub. Believed to have been killed in the undersea disaster were OceanGate CEO Stockton Rush, paying passengers billionaire Shahzada Dawood and his 19-year-old son Suleman Dawood, aviation tycoon Hamish Harding and Paul-Henri Nargeolet, a renowned expert on the Titanic. "We immediately notified the families," Mauger said at a news conference. "On behalf of the United...