Police have identified a 42-year-old man with multiple prior arrests as the violent nut who stabbed 11 people at a Walmart Superstore in Michigan on Saturday afternoon.

A weekend stabbing spree at a Michigan Walmart initially left 11 injured, including six critically. As of the latest update, 10 people remain hospitalized and are being treated for their injuries, according to officials. The attack began at the Traverse City store around 4:43 p.m. local time on July 26.