Nasire Best, a 21-year-old from Maryland, was identified as the suspect in the shooting outside the White House on Saturday.
Best fired at a checkpoint, prompting the Secret Service to retaliate, and he was killed in the exchange.
A motive for the attack is not clear, but Best was described as an 'emotionally disturbed' individual who had previously been detained by the Secret Service for violating a court order and entering a restricted area.
Best reportedly believed he was Jesus Christ and had been known to the Secret Service, having been detained twice in the past.
A bystander was also injured in the gunfire exchange, but no law enforcement personnel were harmed.
