Lord, please comfort all the families, heal the wounded and heal our land...

Press conference says investigation has been turned over to the FBI to coordinate with local and state agencies, BATFE, and Homeland Security involved. FBI won't release any information until investigation progresses. Whether an act of domestic terrorism or a criminal act is unknown at present, but being treated as terrorism. No motivation established. FBI won't say how or by whom the perp was shot, or ID of shooter, except probably from the Chattanooga area. Only one shooter acting alone. No type of gun used by shooter was identified. "2 or 3" wounded now being treated at hospital (whether those police or others not stated). Will not identify victims yet. News agencies reporting 4 Marines killed, but not addressed in the news conference.