We're hearing from the state fire marshal's office about its investigation into a Springfield fire that killed a grandmother, a child, and one other on Friday night.
Friends say a cigarette fire turned into an explosion when it spread to an oxygen tank being used by an elderly victim.
Lt. Chirs Welch of the state fire marshal's office said “smoking is a very likely contributor” to this blaze, but he says at this point "no one saw her smoking" and he says that fact's very much a part of the investigation. However, he does point out at this point there have been no signs of foul play.
Welch says the autopsy will answer many of their questions. That's scheduled for Monday.