Rohinie Besar stabbed the victim at a Shoppers Drug Mart in Toronto's financial district last Friday.
The victim was rushed to a hospital where she succumbed to her injuries on Thursday.
The Indian-origin woman was arrested on Tuesday and charged with attempted murder. Police said she did not know her victim.
Since the victim has died, Bisesar will now face first-degree murder charges.
A business graduate from the prestigious York University of Toronto, Bisesar has held many jobs in Toronto's financial district.
This website uses cookies.