Missing couple's nephew: "There was a very slow response" after Florida building collapse

Claudio and Maria Bonnefoy are among the dozens unaccounted for after the collapse of a Florida residential tower Thursday.

Maria, who was from the Philippines, and her Chilean husband, Claudio, lived on the 10th floor of the Champlain Towers South condominium in Surfside for more than a decade. After four days of painstaking efforts, rescue workers have found nine bodies. More than 150 people are still unaccounted for.