A gunman opened fire at a Walmart in Colorado, killing three individuals, before fleeing. Two men were killed at the scene, while one wounded woman died in the hospital. The murderer is suspected to be 47-year-old Scott Ostrem, who was reportedly haunted by demonic voices.

Aaron Stephens, a 44-year-old Walmart customer, was paying for groceries at a self-checkout when the horrific shooting occurred. He said, “The employees started screaming and the customers started screaming. I ran out, too, because I didn’t want to get shot.”