By The Washington Post 11/10/2012
“The collapse of the impressive career of CIA Director David H. Petraeus was triggered when a woman with whom he was having an affair sent threatening e-mails to another woman close to him, according to three senior law enforcement officials with knowledge of the episode.”
Read the entire article: http://www.washingtonpost.com/world/national-security/fbi-probe-of-petraeus-triggered-by-e-mail-threats-from-biographer-officials-say/2012/11/10/d2fc52de-2b68-11e2-bab2-eda299503684_story.html?hpid=z1