>> A man hunt is underway for the gun man who police say walked into a Colorado Walmart, Wednesday evening and opened fire killing three people. He's been identified as 47 year old Scott Ostrem. Authorities say Ostrem nonchalantly entered the Walmart in Thornton, a suburb of Denver and randomly shot at shoppers and clerks.

He then walked out, got into a red four door hatchback and drove away. Two men and a woman were killed in the shooting.>> My son was in there with his friend. And he was near the shooter. If anything happens to me, I love you guys, I love you all so much.

>> Her son and his friend were able to escape unharmed through a side door. Police are working on a motive.