Port St. Lucie, FL (CNN) - Take a look at this armed robbery caught on surveillance video outside a Florida Walmart.
If you look on the right side of the screen, you see a woman approach a lady with a cart full of groceries.
Port Saint Lucie police say the suspect showed the 65-year-old victim a knife and demanded her purse. The woman then yelled that her purse was stolen and you can see a man run after the thief and tackle her at the top of the screen.
That man was stabbed in the neck and ended up with nine stitches.
Now, police are looking for the purse snatcher after she got away in a pick-up truck.
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