Pittsburgh Mayor Luke Ravenstahl addresses a news conference Thursday, May 5, 2011 in Pittsburgh. The mayor and Police Chief Nate Harper said a city investigation cleared three police officers who ... more 
Pittsburgh Mayor Luke Ravenstahl addresses a news conference Thursday, May 5, 2011 in Pittsburgh. The mayor and Police Chief Nate Harper said a city investigation cleared three police officers who were found not to have committed crimes by the Justice Department in their interactions with a teen who claims he was wrongly beaten in January 2010. less 
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Associated Press | Photo By Keith Srakocic
Thu, May 5, 2011 5:01 PM EDT