Two Marine veterans played a key role in stopping a man who allegedly stabbed multiple victims in a Michigan Walmart. Matthew Kolakwoski had just left a checkout lane when he heard a worker scream that a man had a knife. He then heard a “mass of blood-curling screams from the back of the store,” mlive.com reported.

Matthew Kolakowski was shopping for fishing gear and snacks with his daughter at a Michigan Walmart over the weekend when he heard an employee yelling “he's got a knife” followed by sounds of screaming.