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 stabbing rampage at a Walmart in Traverse City, Michigan, left 11 people injured, six critically. Amid the chaos, shopper Derrick Perry heroically intervened, tackling the suspect and preventing ...

I could see it in his eyes that he was wild-eyed and he did not look like he was in his right mind,” Perry said.

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

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

Derrick Perry says he is just like anyone else living in the Traverse City community, but he became nationally recognized after he stopped a man who stabbed 11 people at Walmart.

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

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

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