Nathan Carman Describes Seeing Mom For the Last Time at Sea; Police Question Nathan Carman in Grandfather John Chakalos' Murder; Insurance Company Won't Pay Nathan Carman's Claim For Boat Lost at Sea
Where to Watch Lost at Sea
Cast of Lost at Sea
Cynthia McFadden
Deborah Roberts
Diane Sawyer
Elizabeth Vargas
John Quiñones
Lisa McRee
Martin Bashir
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