Brazil is marking three days of national mourning for the victims of the fire at a nightclub in the southern city of Santa Maria.
At least 230 people were killed — most of them from smoke inhalation.
Anchor Marco Werman speaks with Daniel Fiterman Molinari.
He is a doctor from the neighboring city of Porto Alegre.
He traveled to Santa Maria with a team of physicians and nurses to help out with the casualties.