Edward Cassano, Pelagic Research Services CEO, held back tears as he described the moment the Titan submersible search and rescue turned "into a recovery."<br /><br />Just hours after arriving, Pelagic Research Services found debris from the imploded sub and relayed the information to the victim's families.<br /><br />Mr Cassano was speaking to press at the conclusion of the search, when he said: "We have to apologise - there are a lot of emotions, and people are tired."<br /><br />It comes after the US Coast Guard said "presumed human remains" have been discovered within the wreckage of the Titan submersible.