The former Marine who used a shopping cart as a weapon and the man who took cellphone video of bystanders helping to apprehend the Walmart mass stabbing suspect talked with reporters.

A former Marine who helped confront the suspect in a stabbing rampage at a Walmart in Michigan spoke with "Good Morning America" after the incident that authorities said was an act of terrorism.

The suspect who allegedly injured 11 people with a knife at a Michigan Walmart on Saturday is a mentally unwell

Of the 11 people who were attacked, six remained in fair condition as of late Tuesday morning, while one was listed in good condition.

One of the men who authorities say helped take down a suspect who stabbed eleven people at a Walmart told NBC News about how he sprung into action. Marine veteran Matthew Kolakowski says he took off running after the suspect and rammed him with a grocery cart to prevent him from hurting more people.

GRAND RAPIDS, MI - Matthew Kolakowski had just left the Walmart checkout lane when a worker screamed that a man had a knife. Then, he heard a “mass wave of just blood-curdling screams from the back of the store.