Paula Broadwell, the woman named in the Petraeus scandal, warned another woman to "back off" and "stay away" from the general. The FBI uncovered details of Petraeus's affair with Broadwell after the "second lover," fearing for her safety, alerted them.
According to the NY Daily News, the woman, said to be close to the general, was so disturbed by the emails that she reported to the FBI.
Digital Journal reported that the FBI discovered Petraeus's affair with Broadwell after someone alerted the authorities to emails from Broadwell. The FBI traced the emails to Broadwell, who allegedly sent some from the retired general's Gmail account.
According to Slate, the FBI began investigating the possibility of a breach of security, and soon confirmed that there had been no hacking but that Petraeus had given Broadwell access to his Gmail account.
Rather than evidence of a breach of security, FBI agents stumbled upon evidence of an affair between Broadwell and Petraeus, including sexually explicit email exchanges between them. One of the emails had a reference to "sex under the desk."
According to the NY Daily News, as investigators uncovered more sexually explicit emails between Petraeus and Broadwell, it became clear that they were having an affair. It also became clear from the emails Broadwell sent to the "second lover" that she viewed her as a threat.
The New York Post reports that an official said the email contained threatening words such as: "I know what you did," "back off" and "stay away from my guy." According to the official, Broadwell "clearly thought something was going on" and that she was in a "lovers triangle."
Slate reports that the woman who allegedly received the threatening emails from Broadwell was 37-year-old Jill Kelly from Tampa, Florida, a State Department's liaison to the military's Joint Special Operations Command.
The Washington Post reports that long before the FBI investigation began, CIA officials had expressed concern about Broadwell's access to Petraeus. Broadwell frequently visited the CIA headquarters in Langley, Virginia, to see Petraeus in his office. She often accompanied him in official morning runs and often attended public functions as his guest.
The Washington Post reports that several people close to Petraeus expressed surprise that he gave Broadwell so much access. Slate reports:
Lt. Gen. David Petraeus' extramarital affair with his biographer led to his resignation as director of the CIA
"She[Broadwell] doesn't appear to have been well liked by those close to Petraeus. It wasn't just that Broadwell seemed too willing to leverage her close relationship with Petraeus but also that her outfits ('usually tight shirts and pants') led to complaints in Afghanistan. Petraeus was apparently forced to tell her to 'dress down' through a staffer.. Despite the concerns, no one seems to have believed there was anything inappropriate about the relationship between Broadwell and Petraeus."
According to The Washington Post, FBI investigation into the emails uncovered no crime or clear evidence of breach of security. Justice Department officials were, therefore, initially unclear what to do.
The Justice Department passed the information to James R. Clapper, the Director of National Intelligence. Clapper spoke to Petraeus and advised him to resign.
The Washington Post reports that an intelligence official, said: "Director Clapper learned of the situation from the FBI on Tuesday evening around 5 p.m. In subsequent conversations with Director Petraeus, Director Clapper advised Director Petraeus to resign."
Clapper also said there was no need for an internal CIA investigation as the evidence unearthed pertained only to personal matters and not matters of intelligence significance.
Clapper met with President Obama on Thursday morning and told him about the investigation. Later on the same day, Petraeus met the President and offered his resignation. Obama accepted the resignation on Friday.
According to The New York Times, some senior members of Congress were alerted several hours before the story broke.
The New York Times reports that some Congressional staff members have alleged a cover-up, saying the bureau should have alerted Republican and Democratic leaders of the House and Senate Intelligence Committees earlier.