Firefighters say what they found could have turned catastrophic with a little heat or a single leak or spark.
A damaged MRI machine began emitting hazardous gases at JFK Airport, according to the Port Authority Police officers' union.
Police didn't say how the 5-year-old boy and his 7-year-old sister died, but they said they were treating the deaths as suspicious. They said the children likely had been dead inside the house for at least 24 hours.