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

Authorities say he attacked 11 people before bystanders confronted him in the parking lot until police arrived.

Shane Gille reveals his family's 28-year struggle with Brad Gille's mental illness before the attack that led to 11 attempted ...

One of the men who authorities say helped take down a suspect who stabbed eleven people at a Walmart told NBC News about how ...

A 42-year-old Michigan man accused of carrying out a knife attack at a Traverse City Walmart has been charged.

Video footage from the incident shows bystanders confront the suspect after a stabbing rampage that initially left 11 people ...

A weekend stabbing spree at a Michigan Walmart initially left 11 injured, including six critically. As of the latest update, ...

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

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

At least 11 people were injured in a "multiple stabbing incident" at a Walmart in Traverse City, Michigan, officials said.