Please answer a question about the following article about Tucson, Arizona:

Tucson's largest park, Reid Park, is located in midtown and includes Reid Park Zoo and Hi Corbett Field. Speedway Boulevard, a major east-west arterial road in central Tucson, was named the "ugliest street in America" by Life magazine in the early 1970s, quoting Tucson Mayor James Corbett. Despite this, Speedway Boulevard was awarded "Street of the Year" by Arizona Highways in the late 1990s. According to David Leighton, historical writer for the Arizona Daily Star newspaper, Speedway Boulevard derives its name from an old horse racetrack, known as "The Harlem River Speedway," more commonly called "The Speedway," in New York City. The street was called "The Speedway," from 1904 to about 1906 before the word "The" was taken out.

Which newspaper did David Leighton work for?
Arizona Daily Star