PUEBLO, Colo. (CBS4) – Authorities have uncovered new information about a fire that killed a mother and son on Christmas morning.
Investigators now say they discovered an unknown flammable substance in the kitchen of the apartment that caught fire.
Natasha Fiore, 25, and her 3-year-old son Elijah Pino were killed.
Investigators are now waiting for lab reports to identify the unknown substance.
The testing could take weeks.