"<a href=""http://www.cnn.com/2012/11/13/us/gen-allen-profile/index.html "" target=""_blank"">Gen. John Allen</a>, 58, U.S. commander in Afghanistan, <a href=""http://www.cnn.com/2012/11/13/us/petraeus-allen-investigation/index.html"" target=""_blank"">is under investigation</a> for allegedly sending inappropriate messages to Jill Kelley. He denies wrongdoing, according to a senior defense official. Kelley had complained about anonymous e-mails she received, which were found to be from Paula Broadwell. The FBI probe of those e-mails led to the discovery of Broadwell's affair with CIA Director David Petraeus."