Seattle Mayor Katie Wilson may oust the city's police chief following public criticism over the response to a fatal shootout at a crowded food festival under the Space Needle. Wilson asked Chief Shon Barnes to resign but he declined. That's according to the president of the Washington state NAACP, who learned of the request from Barnes' chief of staff. Wilson's office has not yet commented. Barnes told The Seattle Times his future as chief is “up to the mayor.” The shooting last weekend killed three, including a suspect, and left four others injured. A teen is in custody and police are looking for another suspect.