Mayo has been a data journalist withThe Seattle Times’ investigative team for fifteen years, specializing in database and spatial analysis. He also helps with short-term and breaking news, covering issues such as criminal justice, demographics, elections, education and housing. He contributed to an investigative series that won the 2012 Pulitzer Prize for exposing the state of Washington’s financially motivated practice of routinely prescribing a deadly pain drug for people in state-subsidized health care. Prior toThe Times, he was the database administrator at the National Institute for Computer-Assisted Reporting in Columbia, Mo. Mayo received an M.A. in journalism from the University of Missouri-Columbia and a B.A. in International Studies from the University of Washington.