Washington, DC Mayor Vincent Gray said in his third press conference of the day Monday that 13 people were dead in the Navy Yard shooting, including the gunman.
He added that police were still looking for an African-American male about 50 years old wearing an olive drab military-style uniform with graying sideburns. But authorities had not said what, if any, role the man may have played in the shooting.
Valerie Parlave, assistant director in charge of the FBI's Washington field office, confirmed that the deceased gunman was identified as Aaron Alexis, 34, of Fort Worth, Texas.
See photos of Alexis here.