Families remember the five Titan crewmembers presumed dead on dive to Titanic wreckage

A renowned Titanic expert, a world record-holding adventurer, two members of one of Pakistan’s wealthiest families and the CEO of the company leading an expedition to the world’s most famous shipwreck are presumed to have died aboard the Titan submersible when it imploded in the Atlantic Ocean sometime this week, NBC Chicago’s Alex Maragos reports.