Melissa Prince, of Edison, stabbed the female victim multiple times during an apparent fight at the Clark store around 3:45 p.m. Sunday, Jan. 2, local police said.
The victim was rushed to University Hospital in Newark where she was in critical but stable condition on Monday, authorities said.
Another store employee and off-duty state trooper were among the first responders, ShopRite officials told NJ Advance Media.
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