A gunman opened fire at the Cascade Mall in Burlington, Washington, on Friday night, killing 5 people. The man, armed with a rifle, started shooting at people in the Macy's department store killing four females and a male before fleeing. Washington state police identified and arrested 20-year-old suspect Arcan Cetin of Oak Harbor, Washington. "This was a senseless act. It was the world knocking on our doorstep, and it came into our little community," Burlington Mayor Steve Sexton said.