BURLINGTON, Wash. -- The FBI has joined the search for an armed man suspected of killing at least four people, and injuring one other, in a shooting at Cascade Mall in Skagit County, the Washington State Patrol says.
"We're doing everything we can to find this person. Stay vigilant. If you see something, just like they say, say something," said State Patrol Sgt. Mark Francis. "Avoid the area. If you live close to the area, stay inside - lock your doors."