Suspect had long history of mental health issues and was charged in a grave mutilation case in 2017. He also had run-ins with police at least twice this year.

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.

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

"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.

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

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

TRAVERSE CITY, MI – Police have identified the man they believe entered a Walmart and stabbed 11 people at random. Bradford James Gille, 42, is in custody and awaiting arraignment on numerous charges in connection with the mass stabbing, police said at a press conference Sunday, July 27.

Medical officials reported positive recovery signs for the eleven people wounded in a Michigan Walmart stabbing spree, while questions remain about the suspect.