United States Attorney David J. Hicton, center, flanked by Akeia P. Conner, special agent in charge of Internal Revenue Service Ingvestigations, left, and Doug Perdue, special agent in charge or the Pittsburgh Division of the Federal Bureau of Investigation, announces that a federal grand jury in Pittsburgh has indicted retired Pittsburgh Police Chief Nate Harper on charges of conspiracy and willful failure to file income tax returns, Friday, March 22, 2013 in Pittsburgh. (AP Photo/Gene J. Puskar)

Associated Press
United States Attorney David J. Hicton, center, flanked by Akeia P. Conner, special agent in charge of Internal Revenue Service Ingvestigations, left, and Doug Perdue, special agent in charge or the Pittsburgh Division of the Federal Bureau of Investigation, announces that a federal grand jury in Pittsburgh has indicted retired Pittsburgh Police Chief Nate Harper on charges of conspiracy and willful failure to file income tax returns,  Friday, March 22, 2013 in Pittsburgh. (AP Photo/Gene J. Puskar)
United States Attorney David J. Hicton, center, flanked by Akeia P. Conner, special agent in charge of Internal Revenue Service Ingvestigations, left, and Doug Perdue, special agent in charge or the Pittsburgh Division of the Federal Bureau of Investigation, announces that a federal grand jury in Pittsburgh has indicted retired Pittsburgh Police Chief Nate Harper on charges of conspiracy and willful failure to file income tax returns, Friday, March 22, 2013 in Pittsburgh. (AP Photo/Gene J. Puskar)