Runners pass through the finish line down the Boulevard of the Allies to complete the Pittsburgh Marathon on Sunday, May 5, 2013, in Pittsburgh. (AP Photo/Keith Srakocic)

 

              Runners pass through the finish line down the Boulevard of the Allies to complete the Pittsburgh Marathon on Sunday, May 5, 2013, in Pittsburgh. (AP Photo/Keith Srakocic)
Runners pass through the finish line down the Boulevard of the Allies to complete the Pittsburgh Marathon on Sunday, May 5, 2013, in Pittsburgh. (AP Photo/Keith Srakocic)