Man goes back for dog.
Karen Wright spent her last moments huddled in the bathtub of her mobile home, breathing poison. The teen-ager escaped the flames that started when an electrical spark ignited a living room love seat. But she couldn't elude a swirl of deadly cyanide gas and carbon monoxide that is created whenever the foam inside sofa and chair cushions burns. Karen and Dee Ann never knew a sofa could ignite as easily as gasoline. The government did.