At least 17 people, including 8 children, were killed in a fire at a high-rise building in New York City on Sunday. A preliminary investigation revealed that a malfunctioning electric space heater started the fire, which was one of the deadlier building blazes in the city’s history. The heavy smoke blocked some residents from escaping and incapacitated others as they tried to flee. Victims, many in cardiac and respiratory arrest, were found.