Newly released surveillance video shows chaos inside a Michigan Walmart as a man went on a stabbing spree in July, injuring ...

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

Video shows an armed bystander confronting a knife attacker who allegedly injured 11 people at a Walmart in Traverse City, ...

A civilian responsible for detaining a stabbing suspect at a Michigan Walmart on Saturday was identified and hailed a “hero” on social media. Derrick Perry, a Marine veteran who was captured in ...

One of the men who helped subdue the suspect in the stabbing on July 26 at a Walmart ... him isolated and get him to put the knife down," Derrick Perry said. Perry, a former Marine, was checking out ...

A Heroic Marine vet saved countless lives when he confronted a knife-wielding lunatic in the middle of a stabbing spree at a ...

What began as a regular Saturday afternoon at a Walmart in Traverse City, Michigan, quickly descended into chaos as a 42-year-old man began stabbing customers at ... helped prevent further bloodshed.

One of the men who helped subdue the suspect in the stabbing on July 26 at a Walmart near Traverse City spoke to ABC's "Good Morning America" on July 29 about the ordeal.

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

Northern Michigan is celebrating a man with a gun who took down the Walmart stabbing suspect, yet showed restraint in not ...

An image collage containing 4 images, Image 1 shows Derrick Perry, the man who disarmed a Walmart stabbing suspect, Image 2 shows Marine veteran Derrick Perry confronted the mass shooting suspect ...