Freelance reporter Sean Holstege has written a two-part series on unsolved murders in Phoenix and how cases go cold. We'll hear from Holstege about his stories written for the Phoenix New Times. and After more than a decade as the executive director of the Arizona Commission on the Arts, Robert Booker will retire from the commission and be succeeded by Jaime Dempsey, the deputy director since 2006. We'll hear from Booker about his time and accomplishments at the commission and from Dempsey about her vision for the organization as she takes over.