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

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

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

A former Marine who was armed with a gun confronted the suspect accused of stabbing several people at a Michigan Walmart.

The good Samaritan who held the Traverse City Walmart stabber at gunpoint has been identified as a worker for Munson Healthcare.

The armed bystander who confronted the suspect in a mass stabbing at a Traverse City Walmart over the weekend spoke to Good Morning America.

O'Brien and Kolakowski, who are brothers-in-law, were visiting the Walmart to pick up supplies for a family vacation when the ...

Munson Healthcare is confirming that Derrick Perry, a Munson employee, was among the group of good samaritans that confronted ...

Derrick Perry, a United States Marine veteran, confronted a knife-wielding man in the parking lot of the Traverse City ...

Nearly a dozen people were injured in the attack before citizens -- including Derrick Perry, who was armed with a gun -- ...

Perry was captured on video confronting a Cheboygan man after he allegedly stabbed 11 people at a Walmart store in Garfield Township.

In an ABC News exclusive, Derrick Perry recounts his confrontation and pulling his gun on the man accused of stabbing 11 ...