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

Dramatic video shows a heroic Walmart shopper armed with a gun confronting a knife-wielding maniac moments after he allegedly ...

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

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, a Marine veteran, was captured on video holding Bradford James Gille at gunpoint after Gille allegedly stabbed ...

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

Viral video captures the moment Perry confronts the suspect, drawing praise from Traverse City residents and social media ...

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

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

Derrick Perry, the armed citizen who played a crucial role in the apprehension of a stabbing suspect at the Traverse City ...

"The only thing that separated me from the other gentleman that had stepped in as well was what I was carrying in my hands," ...

A mass stabbing at a Traverse City Walmart left 11 injured on Saturday, but quick action by shopper Derrick Perry, who ...