The 2007 picture provided by the Uniformed Services University of the Health Sciences shows Nidal... 
(Uniformed Services University of the Health Sciences/AP Photo)
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Leaders of a Pentagon-appointed task force charged with investigating what factors led to the Fort Hood massacre Nov. 5 and recommending policies to prevent future attacks began their review today, saying their job is not "to point fingers."
"We're simply here to accumulate information and offer our best judgments to the Secretary of Defense," said Togo West, who served as Secretary of the Army and Secretary of Veterans Affairs during the Clinton administration. "Today we take the first step along that road."
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West and former Chief of Naval Operations Admiral Vernon Clark are leading the review board. They arrived at the Fort Hood base today to begin what will be a 45-day investigation. A separate criminal investigation is already underway.
At a press conference this afternoon, West said they will examine policies and procedures "that have to do with how we deal with service members who may ... cause trouble or harm to their fellows," as well as those that pertain to force protection, how to deal with mass casualties, and how to apply such procedures to an alleged perpetrator.
Clark and West emphasized that their investigation is not criminal in nature, and also commended the emergency response to the Fort Hood shooting.
"One of the tasks that we've been given to perform is to evaluate the performance of our first responders," said Clark. "And the story about how the first-responder team performed is very, very encouraging."
Army Major Nidal Hasan is facing 13 counts of premeditated murder for the attacks and will be tried in military court.
Hasan's attorney John Galligan told "Good Morning America" Sunday that his client will probably plead not guilty and that an insanity defense is possible.
Galligan said Hasan may face additional charges for the Nov. 5 shooting spree. He said he was alerted to the new charges during a pre-trial confinement hearing before a military magistrate held in Hasan's San Antonio hospital room Saturday.
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