A group of citizens, including a firearm-wielding Perry, confronted the suspect in the parking lot in a dramatic scene that was captured on video by a bystander. A deputy then took the suspect -- 42-year-old Bradford James Gille -- into custody, authorities 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.

Matthew Kolakowski was shopping with his daughter at a Michigan Walmart when he heard screams and saw a man with a knife.