Elderly woman beaten to death, niece arrested

She is 78-years-old. But Dutchess County investigators say Marilyn Gerathy is the suspect, not the victim, in a fatal beating that ultimately killed an 89-year-old woman.

http://abclocal.go.com/wabc/story?section=news/local/northern_suburbs&id=9324634&rss=rss-wabc-article-9324634