Summary: Army psychiatrist Nidal Malik Hasan, 39, opened fire on an Army base in an attack linked to Islamist extremism. Hasan was injured during the attack and later arrested.
Weapon: One semiautomatic handgun
Age of Shooter: 39
Mental Health Details: Yes
Sources: http://seattletimes.com/html/nationworld/2010232219_apusforthoodshooting.html; http://articles.latimes.com/2010/oct/21/nation/la-na-fort-hood-20101022; http://thelede.blogs.nytimes.com/2009/11/05/reports-of-mass-shooting-at-fort-hood/; http://www.usatoday.com/news/military/story/2012-08-14/fort-hood-rampage-trial/57050394/1
mental Health Sources: http://www.npr.org/templates/story/story.php?storyId=120313570