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.

Derrick Perry says he's no hero for helping subdue Bradford James Gille, who faces terrorism and assault charges for allegedly stabbing 11 people.