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

A terrifying stabbing spree at a Walmart in Traverse City, Michigan, could have ended in far greater tragedy — but

"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.

Following the stabbing of 11 victims at a Walmart store near Traverse City, Michigan, on Saturday, Grand Traverse County Sheriff Michael Shea said in a press conference that what bystanders did to stop the knife-wielding man was “amazing.”

Authorities say they plan to file terrorism and assault with intent to murder charges against the suspect in a weekend knife attack at a Walmart store in Michigan.