Gas for McDonald's soda fountain caused Ga. death

It was about the soda fountain a death to a women and got 8 people sick. They say it was because a leaky gas that cause that. They didn't press charges to Mcdonalds beacuse it seems like it was a mistake, so they just changed the sodas foutain gas lines. I think that maybe the women that died in the bathroom maybe he had breathing problems because she was way older and died at 80 and noone else died except her. Also woudln't peope relize if they coudn't breathe and would imediately tell someone in the resteraunt. I think it was prominence beacuse Mcdonalds is a famous Fast food resteraunt and alot of people eat there.