I bet a 92-year-old woman can hear the door being broken down a whole hellofalot better than a call of "police."
My bet is they yelled Police as they broke down the door and rushed in. The article says it was a crime ridden neighborhood, so her rusted gun probably was close by.
By what isn't being said makes me think the Atlanta cops screwed up somewhere, big time and a 92 year old woman paid.