Matthew Kolakowski was shopping with his daughter at a Michigan Walmart when he heard screams and saw a man with a knife.

They went to Walmart to pick up fishing poles, pop and snacks for a day on the lake. They wound up stopping a stabbing.

Two men who took action during the Saturday Traverse City Walmart stabbing that injured 11 people sat down for an interview Tuesday in Grand Rapids, MI.

GRAND RAPIDS, MI - Matthew Kolakowski had just left the Walmart checkout lane when a worker screamed that a man had a knife.

The actions some shoppers drew praise from authorities. Overnight, the strangers became online celebrities for their heroics ...

Marine veterans Matthew Kolakowski and Derrick Perry helped stop a man accused of attacking 11 people near Traverse City, ...

A Kolakowski, un veterano discapacitado de 39 años, rápidamente se le sumó otro hombre con un carrito y detuvieron al hombre, ...

A man was arrested and is facing multiple charges for allegedly stabbing 11 people at a Walmart in Traverse City on Saturday.

One of the men who authorities say helped take down a suspect who stabbed eleven people at a Walmart told NBC News about how ...

A Kent County man who helped stop the attacker who authorities say stabbed 11 people at Traverse City-area Walmart said ...

Matthew Kolakowski was shopping with his daughter at a Michigan Walmart when he heard screams and saw a man with a knife.

Mass stabbings are often treated as isolated, irrational outbursts. Mass shootings, especially those involving semi-automatic ...