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

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

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

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

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 ...

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

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

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 ...

Traverse City erupted in chaos when a stabbing broke out inside a local Walmart, but one man’s quick thinking helped stop the violence. Derrick Perry, who was shopping with his family, bravely ...