"It demonstrates with chilling clarity how highly dangerous a young woman you are. You were indifferent that he died and have shown not the smallest bit of remorse," Judge Grower said to Ahmad. "He posed no physical threat to you. What you did was not in self-defence, it was done in anger."

As for Stacey O'Donnell, she is now dedicating her life to combatting knife violence on behalf of her late-son Tai, Daily Mail reports.