At least seven people are dead after multiple shooters opened fire in Ft. Hood, Texas, near a soldier processing center. Almost nothing is clear at this point, except that this is a horrific day for the U.S. Army. NBC has reported the shootings are military-on-military.

Until the facts are known, let’s all refrain from commentary. I hear snippets from CNN already suggesting that the gunmen are suffering from combat stress from multiple deployments. “We don’t know at this point who was involved in the shooting, but that is something the Army is trying to tackle,” some CNN anchor just said. I don’t know how they can say that before the identities of the shooters are ascertained.

Update, 4:28 p.m.: CNN now says nine people have been killed.

Update: 6:06 p.m: CBS reports that there was one shooter, Army. Maj. Malik Hasan, a “licensed psychiatrist from Maryland” using two handguns. He was shot and killed; two other soldiers are in custody for questioning. Twelve people are dead and 31 are injured. Sen. Kay Bailey Hutchison (R-Tx.) told MSNBC that Maj. Hasan had been “known” to make disparaging remarks about his imminent deployment to Iraq.

There is a press conference scheduled at Ft. Hood for 6:35 p.m. EST.