Horrifying moment woman randomly stabs grandmother five times in Dover

Horrifying moment woman randomly stabs grandmother five times in Dover. CCTV footage shows the moment door staff shouted 'watch out behind you' as a woman pulled. knife from her jacket, raised it and repeatedly stabbed a stranger in the back. Natasza Zakrzewska launched her "random and ferocious" attack on an unsuspecting grandmother on Biggin Street, Dover.