FBI agent Frederick Humphries is shown at a crime scene in Tampa, Fla., in 2007. Mr. Humphries is the agent who started the investigation of e-mails that led to the resignation of Petraeus. Thomas M. Goethe/Tampa Bay Times/Reuters
David Petraeus, then CIA director, lifts his hands during a ceremony at Fort Campbell, Ky. Mr. Petraeus, a retired four-star general, may still be summoned by Congress to testify at some point on the Central Intelligence Agency’s response to the Sept. 11 terrorist attack in Benghazi, Libya. Mark Humphrey/AP
Paula Broadwell is the author of the Petraeus biography "All In: The Education of General David Petraeus." Petraeus carried on an affair with Ms. Broadwell, a West Point graduate who is married and has two children. T. Ortega Gaines/The Charlotte Observer/AP
Jill Kelley of Tampa, Fla., received harassing e-mails from Petraeus's paramour, Broadwell. Ms. Kelley has hired high-profile attorney Abbe Lowell and crisis manager Judy Smith, who previously represented Monica Lewinsky. Chris O'Meara/AP
The sex scandal that led to Petraeus's downfall widened with word that Gen. John Allen, the commander of US forces in Afghanistan, is under investigation for thousands of "potentially inappropriate" communications with Kelley. Haraz N. Ghanbari/AP
With the resignation of Petraeus as CIA director, President Obama said that Michael Morell, CIA deputy director, would serve as acting director. Mr. Morell is set to testify Nov. 15 before Senate and House intelligence committees on the CIA’s role in responding to the Benghazi attack. Dennis C. Enser/Buffalo News/AP
FBI agents carry containers and a computer from the home of Broadwell, in the Dilworth neighborhood of Charlotte, N.C. Members of Congress want to know how the affair with Broadwell might have compromised aspects of national security and intelligence. Chuck Burton/AP
Petraeus shakes hands with his biographer, Broadwell. Questions about the possible intelligence and national-security ramifications of Petraeus’s dalliances gained in urgency after it was revealed that Broadwell offered up what appears to have been undisclosed information in an October 2012 speech at the University of Denver, where she earned a master’s degree. ISAF/AP
David Petraeus (far l.) and his wife, Holly (far r.), celebrated Tampa's Gasparilla festival at Jill (center r.) and Scott Kelley's million-dollar Bayshore home in 2010. At the time, Petraeus was commander of US Central Command at MacDill Air Force Base in Tampa. Ms. Kelley has served as an unpaid social liaison to MacDill Air Force Base. Amu Scherzer/The Tampa Bay Times/AP
Defense Secretary Leon Panetta (l.) has already named Gen. Joseph Dunford (r.), currently the No. 2 officer in the Marine Corps, to succeed Allen as the top US commander in Afghanistan. Secretary Panetta has urged Congress to expedite that confirmation. Francois Lenoir/Reuters
Retired Gen. David Petraeus returned to the public eye with a speech about veterans affairs Tuesday. The topic of the speech could offer clues about his next public role, a friend says.
With his speech at the University of Southern California Tuesday night, retired Gen. David Petraeus – commander of America’s wars in Iraq and Afghanistan before becoming director of the Central Intelligence Agency – effectively signaled his return to public life.
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