he was supposed to have given a medical presentation, instead he started rambling about Muslim soldiers
http://www.washingtonpost.com/wp-dyn/content/article/2009/11/09/AR2009110903618.htmlAs a senior-year psychiatric resident at Walter Reed Army Medical Center, Maj. Nidal M. Hasan was supposed to make a presentation on a medical topic of his choosing as a culminating exercise of the residency program. Instead, in late June 2007, he stood before his supervisors and about 25 other mental health staff members and lectured on Islam, suicide bombers and threats the military could encounter from Muslims conflicted about fighting in the Muslim countries of Iraq and Afghanistan, according to a copy of the presentation obtained by The Washington Post.
Also
Even before he was promoted to major in May, Hasan's behavior caused concern among his superiors at Walter Reed Medical Center in Bethesda, Md.
He once told a female superior that she'd be "ripped to shreds" because she was not a Muslim, according to ABC News. He also said Muslim soldiers should be released as conscientious objectors. National Public Radio has reported that Walter Reed officials did not take action against Hasan because they feared a backlash for targeting a Muslim. Army officials at Fort Hood say they were never told about Hasan's issues at Walter Reed.
Senior US intelligence officials have said that during this time the FBI intercepted missives from Hasan to Anwar al-Awlaki, a US-born cleric and Al Qaeda sympathizer now living in Yemen. Intelligence officials said it was not a threat, and no action was taken.
http://www.csmonitor.com/2009/1118/p02s07-usgn.htmlAnd
Nidal Malik Hasan struck some of his classmates as a "ticking time bomb" whose strange personality telegraphed trouble long before he allegedly killed 13 people at Fort Hood. These students, speaking privately because they have been ordered not to speak publicly, say they're angry that what they view as political correctness led their superiors to ignore the warning signs witnessed by students and faculty at the Uniformed Services University of the Health Sciences in Bethesda, Md. Two of them expressed a willingness to testify about Hasan's conduct in the 2007-08 school year but also expressed concern that the military's political sensitivities could compromise any Pentagon investigation.
"We asked him pointedly, 'Nidal, do you consider Shari'a law to transcend the Constitution of the United States?' And he said, 'Yes,' " a classmate told TIME on Monday. "We asked him if homicidal bombers were rewarded for their acts with 72 virgins in heaven and he responded, 'I've done the research — yes.' Those are comments he made in front of the class." But such statements apparently didn't trigger an inquiry.
http://www.time.com/time/nation/article/0,8599,1940011,00.html