FILE - In this Thursday, April 18, 2013 file photo, Special Agent in Charge of the FBI's Boston Field Office Richard DesLauriers speaks during a news conference in Boston about the investigation of

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FILE - In this Thursday, April 18, 2013 file photo, Special Agent in Charge of the FBI's Boston Field Office Richard DesLauriers speaks during a news conference in Boston about the investigation of the Boston Marathon explosions. One of the main law enforcement figures during the Boston Marathon bombing investigation, DesLauriers announced Tuesday, June 11, 2013 that he’s stepping down to take a private-sector job. (AP Photo/Julio Cortez) less 

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Associated Press
Tue, Jun 11, 2013 11:16 PM EDT