"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.

At least 11 people were stabbed in a bloody scene inside a Michigan Walmart Saturday night — causing terrified shoppers and employees to flee — before a brave armed citizen helped detain the knife-wielding maniac, according to police, witnesses and harrowing video.

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

Bystanders corner Walmart stabbing suspect in parking lot outside the Traverse City store before arrest. (Video:Chris O'Brien, social: highon16widez)

Law enforcement officials have concluded a 64-year-old Traverse City woman who reported a stabbing incident at an apartment complex in Garfield Township was actually suffering from self-inflicted