Photos: Census Bureau shooting

H Street in Northwest D.C. reopened by mid-morning Friday, April 10, 2015. (91欧美激情/Dennis Foley)

Crime scene tape is visible near an entrance to the U.S. Census Bureau headquarters, Thursday, April 9, 2015 in Suitland, Md., as police search for an armed man who, according to a fire official, shot a security guard at a gate to the facility in Suitland, Md., Thursday, April 9, 2015. (AP Photo/Alex Brandon)

AP Photo/Alex Brandon

Officers prepare to head toward the U.S. Census Bureau building after reports that a federal officer had been shot at the U.S. Census Bureau in Silver Hill, MD on Friday, April 9, 2015. (AP Photo/The Washington Post, Jabin Botsford)

AP Photo/The Washington Post, Jabin Botsford

A person is seen in a building on the U.S. Census Bureau headquarters campus as police search for an armed man who, according to a fire official, shot a security guard at a gate to the facility in Suitland, Md., Thursday, April 9, 2015. (AP Photo/Cliff Owen)

AP Photo/Cliff Owen

Police search a building on the U.S. Census Bureau headquarters campus for an armed man who, according to a fire official, shot a security guard at a gate to the facility in Suitland, Md., Thursday, April 9, 2015. (AP Photo/Cliff Owen)

AP Photo/Cliff Owen

Law enforcement officers investigate the scene involving at least one wrecked DC Metro police car, in the 1100 block of H Street NE, Thursday, April 9, 2015 in Washington. Police say a man who kidnapped his wife shot a guard at the U.S. Census Bureau headquarters in Maryland before leading police on a chase into Washington, D.C., that ended with the suspect and an officer wounded. (AP Photo/Alex Brandon)

AP Photo/Alex Brandon

Law enforcement officers investigate the scene involving at least one wrecked DC Metro police car Thursday, April 9, 2015, in Washington. An armed man kidnapped a woman, shot a Census Bureau guard and led police on a car chase through Maryland and Washington, D.C., on Thursday before authorities cornered him in an exchange of gunfire. (AP Photo/Alex Brandon)

AP Photo/Alex Brandon

Police search a parking garage on the U.S. Census Bureau headquarters campus for an armed man who, according to a fire official, shot a security guard at a gate to the facility in Suitland, Md., Thursday, April 9, 2015. (AP Photo/Cliff Owen)

AP Photo/Cliff Owen

A sign for the U.S. Census Bureau headquarters campus as police search for an armed man who, according to a fire official, shot a security guard at a gate to the facility in Suitland, Md., Thursday, April 9, 2015. (AP Photo/Alex Brandon)

AP Photo/Alex Brandon

AP Photo/Cliff Owen