The radio tells me that U.S. Army Col. Maj. Malik Hassan Hasan and two accomplices have killed 12 10 soldiers and a civilian contractor. Hassan was shot and killed by MPs. The others have been apprehended.
Update: Hasan is said to have used pistols, which suggests a lack of a plan. Also, this: "Fort Hood is home to the Warrior Combat Stress Reset Program, which is designed to help soldiers overcome combat stress issues." It doesn't say if Col. Hasan had seen combat. This could be a PTSD-related incident, if the accomplices prove to be innocent.
On TV, CNN says that there is also known gang activity at Hood.
Update 6:08: Sen. Hutchinson went out of her way on CNN to note that the troops killed were on their way to Iraq. Let the politicization begin!
Update 6:19: Hasan was a doctor.
Update 6:23: Suspected accomplices have been cleared and released. I say PTSD.
Update 6:30: Hasan was a psychiatrist licensed in Virginia.
Update 6:50: Hasan worked at the stress management center.
Update I quit: CNN is interviewing some dude from Facebook. "Are there memorial pages that have been set up?" Um, okay, news over.