Wednesday night a man calmly walked into a suburban Denver Walmart and began shooting people. When the smoke cleared, two men were left dead and a woman was critically wounded. The woman later died at a local hospital. The shooter calmly walked back to his car after the shooting and drove away into the night. Thornton Police identified the man as 47-year old Scott Ostrem. An all points bulletin was issued for the shooter when his identity was discovered. Ostrem was found and taken into custody moments ago (Thursday morning). No word yet on a motive for the shootings that appear to be random.