As per the witnesses' account, Gille entered the Walmart Superstore and began attacking shoppers near the checkout and pharmacy areas with a folding knife.

"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