Nidal Hasan had several connections to the Washington D.C. area. His family members in Virginia say he was distraught over his upcoming tour of duty in Iraq or Afghanistan. And now, we've learned about warning signs months before the attack, that may have been missed.
Investigators are trying to re-trace the movements of the the 39-year old Hasan, the man suspected of walking into a building at Fort Hood where soldiers were preparing to be deployed, and opening fire. A civilian police officer shot him, ending the rampage, but Hasan survived.
And according to a local psychiatric expert, the most useful information may come from Nidal Hasan himself.
Hasan was an Army physician, a psychiatrist who helped soldiers returning from Iraq and Afghanistan. He even worked at Walter Reed Army Medical Center in Northwest Washinton, D.C.
But now, investigators are trying to confirm whether he's responsible for some internet postings, including one that compares suicide bombers to soldiers who throw themselves on a grenade to save fellow soldiers.
