WOODBRIDGE - The Middlesex County Prosecutor's Office confirms that it is investigating a fatal shooting at the Woodbridge Mall.

Authorities tell News 12 New Jersey that a man was shoplifting a CD from a store. When he was confronted by theft-prevention in Sears, he grabbed a woman hostage and held a knife to her throat.

Officials say an off-duty Woodbridge police officer who works as mall security saw the shoplifter take on the hostage. He shot the shoplifter in the head, killing him, investigators say.