Two Pentagon police officers have been released from the hospital following a shootout Thursday at the busy Metrorail station entrance to the Pentagon.

The officers have been identified as Jeff Amos and Marvin Carraway. One officer was shot in the top of the shoulder; the other received a wound in the thigh. Officials say a third officer engaged the suspect, but he was not injured.

Despite the officers' injuries, they fired back, hitting the suspect. Officials say the exchange, which began about 6:40 p.m., lasted less than a minute.

The officers and the suspect were transported to George Washington University Hospital. The suspect, 36-year-old John Patrick Bedell, died at the hospital.

At a news conference Friday, officials said Bedell appears to have acted alone. He was well-dressed in a suit when he walked calmly up to the officers, armed with two 9mm semi-automatic handguns and several magazines filled with ammunition.

Officials say he drove from California to Washington. His vehicle was found in a local parking garage and has been impounded; it contained more ammunition.

According to officials, Bedell was well educated and had contact with law enforcement in the past. They say he may have made an "utterance" before he started shooting, but the officer who can confirm that is recuperating at home.

The Pentagon Metro entrance and the adjacent bus and train station remained closed Friday.