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Rosa Elena Martinez and Jaime Mejia hold a photo of their son Sebastian Mejia who died of carbon monoxide poisoning in an Airbnb-rented Rio de Janeiro apartment.
Saul Martinez for NBC News

Tech News

Airbnb's silent killer: Carbon monoxide deaths mount after a company pledge disappeared

Family members and representatives of people who died said the company has not done enough and called for it to mandate that carbon monoxide detectors be installed in every rental.