The volunteer had not seen Foster, who weighs 550 pounds, anywhere but in the living room chair since July, according to WTVG.

Investigators said Foster was stuck to the chair for at least a year, where she was surrounded by feces and urine. The odor from inside was so powerful first responders could smell it from the sidewalk, according to WTOL. Rescuers had to wear hazmat suits before they entered the house.