What drives a man, a psychiatrist trained in the stresses specific to military personnel, to pick up a gun and shoot fellow soldiers? We may never know what really drove Major Nidal Hasan to his crimes, but a portrait of the alleged shooter at Fort Hood in Texas is beginning to emerge. The Washington Post has a story which says that Hasan used to pray every day at the Muslim Community Center in Silver Spring, Md. Christian Davenport from The Washington Post joins us with more.

Here's the profile that the Associated Press has put together so far: