Federal Bureau Of Investigation

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FILE - In this Oct. 1, 2008 file photo, former FBI agent John Connolly listens to the testimony in his trial, in Miami, Fla. The 3rd District Court of Appeal ruled Wednesday, May 28, 2014, that former agent John Connolly was improperly convicted and sentenced to 40 years in prison for his role in the 1982 slaying of World Jai-Alai President John Callahan.(AP Photo/Alan Diaz)

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FBI Director James Comey testifies on Capitol Hill in Washington, Wednesday, May 21, 2104, before the Senate Judiciary Committee hearing on the oversight of the FBI. (AP Photo/Manuel Balce Ceneta)

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FBI Director James Comey testifies on Capitol Hill in Washington, Wednesday, May 21, 2014, before the Senate Judiciary Committee hearing on oversight of the FBI. (AP Photo/Manuel Balce Ceneta)