Investigation Continues on Fatal West Richland Fire.

WEST RICHLAND -- KEPR has new information on the fire that killed a West Richland mom last week. Autopsy results couldn't clearly say how Sandy St. George died.

The coroner will have to get other lab results back before pinning down an exact cause of death and those results could take weeks. The West Richland Police Department also told KEPR the fire investigation is still open and they haven't said how the fire might have started.