This Wednesday, Nov. 1, 2017, image released by the Thornton Police Department shows shooting suspect Scott Ostrem at a Walmart in Thornton, Colo. Colorado authorities identified Ostrema as the man who police say nonchalantly walked into the Walmart and immediately opened fire with a handgun, killing several.
Police say the incident occurred just before 9 p.m. on Saturday when patrol officers responded to Fable Street and Kayak Avenue for an initial report for a fight that was upgraded to a robbery. A responding officer spotted a man who matched the suspect's description, but when the officer tried to talk to him the man took off running. Police say the officer chased the man, who then pointed a gun at the officer. Police say the officer wasn't hurt, and there's no indication that the suspect was hit.