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

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.

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

Traverse City woman hospitalized after stabbing at Garfield Township apartment complex. Investigation ongoing.