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.

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

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

"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.

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.