THE LOCATION
The Washington Navy Yard sits on a 41-acre site on the Anacostia River in Southeast Washington, four blocks from the Nationals Park baseball stadium and about 1 1/2 miles from the U.S. Capitol. It's surrounded by a fast-growing residential neighborhood.
THE PERSONNEL
More than 18,000 people work at the Washington Navy Yard, including 3,600 military and 14,500 civilian personnel.
THE HISTORY
The Navy Yard is the Navy's oldest shore establishment and is listed on the National Register of Historic Places.
THE BUILDING
The shooting took place at Building 197, the headquarters of the Naval Sea Systems Command. About 3,000 people work there.
THE COMMAND
The Naval Sea Systems Command (NAVSEA) is the largest of the Navy's five systems commands, with a force of 60,000 military, civilian and contract personnel and a budget of nearly $30 billion, about one-fourth of the Navy's entire budget.
WHAT IT DOES
NAVSEA engineers, buys, builds and maintains ships, submarines and combat systems.
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