WASHINGTON, D.C . - The Mayor of Washington, D.C. now says at least 12 people have been killed in a mass shooting at a Navy shipyard Monday morning.
D.C. Mayor Vincent Gray released the death toll just before 2:15 p.m. EST. The number was higher than previous estimates. Sources had told news services that the number of those fatally shot was closer to six.
The twelve fatalities reportedly include a shooter.
Metro D.C. Police Chief Cathy Lanier had originally told media representatives that law enforcement was looking for two men who may have been involved in carrying out the mass shooting, saying that a number of witness accounts mentioned seeing other unidentified men carrying weapons at the time of the massacre.
Later on Monday afternoon Metro D.C. police tweeted that one of them, a man described as a white male between 40 and 50 years of age wearing a tan, military style uniform with a beret and carrying a handgun is not a suspect or person of interest.
That leaves one additional person who may be involved in the mass shooting. He is described as an African-American man approximately 50-years-old, wearing an olive, military-style uniform and carrying a long gun.
The possibility of additional gunmen is concerning to law enforcement as it presents the possibility of a larger conspiracy behind the shooting, rather than the scenario of a single deranged gunman.
Lanier also confirmed that the FBI is now leading the investigation, assisted by a number of law enforcement agencies including the bureau of Alcohol, Tobacco and Firearms and local police and sheriff's departments.
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