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

A Walmart employee was helping a customer check out when she heard a warning that someone in the store had a knife.

"I'm still sitting and grappling with the weight of realizing that it was kind of a life-or-death moment," said Julia Martell, who witnessed the stabbing, which wounded 11 people.

Julia Martell was picking up supplies for her baby when she ran from a man wielding a knife at a Traverse City, Michigan, Walmart. The stabbing attack injured 11 people, and a suspect is in custody, authorities said.

Witnesses recalled the scene as least 11 people were injured when an individual went on a stabbing spree at a Walmart in Traverse City in Michigan.