SUPERIOR, WI (KDAL) - The house fire that took the life of former Superior high school teacher Jean Sweeney on Monday was determined an accident, according to investigators. In his report, Superior Fire Department investigator David Johnson said investigators were unable to determine with certainty the specific cause or origin of the fire. Johnson said they believed it started in the utility room on the lower level near the front of the home. Sweeney was found on the ground facing the front stairwell and pronounced dead at the scene. The medical examiner's office is performing an autopsy.