Two sisters in Marlborough face charges after allegedly beating down an elderly woman in front of a Petco, and then going on a holiday shopping spree. Hudson Police say 47-year-old Lizette Nevarez knocked the 81-year-old victim to the ground and snatched her purse last week. They say her and her sister Anna Nevarez then took the victim's credit card and quickly blew a thousand dollars at a nearby Walmart while the victim was sent to a hospital. Investigators say the women are caught on surveillance video.

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