Photos: Shooting at Holocaust Memorial Museum in Washington

A security officer receives flowers from a man to be placed with the others at the U.S. Holocaust Memorial Museum in Washington, D.C., a day after a shooting left a security guard dead and the gunman wounded.  (Alex Brandon / Associated Press)

A man prays across the street from the Holocaust museum.  (Shawn Thew / EPA)

Flowers are placed in front of the Holocaust museum, where a security guard was killed Wednesday.  (Mark Wilson / Getty Images)

Shooting suspect James W. von Brunn, 88, who was described by the Anti-Defamation League and other watchers of hate groups as a longtime white supremacist and anti-Semite. He was shot during the attack and is in critical condition.  (Talbot County Sheriff’s Office via The Star-Democrat / AP)

Museum guard Stephen Tyrone Johns, 39, of Temple Hills, Md., was shot in the attack and later died.  (U.S. Holocaust Memorial Museum / Associated Press)

William Parsons, left, chief of staff of the U.S. Holocaust Memorial Museum, and Washington, D.C., Mayor Adrian Fenty, right, prepare to address reporters after the shooting.  (Alex Brandon / Associated Press)

Law enforcement authorities swarmed to the museum.  (Alex Brandon / Associated Press)

Sara Bloomfield, director of the U.S. Holocaust Memorial Museum, and Joseph Rosboschil, head of security at the museum, address the media.  (Alex Wong / Getty Images)

Traffic coming from Virginia over the 14th Street Bridge is blocked after the shooting.  (Charles Dharapak / Associated Press)

A police officer in Maryland talks to a motorist outside an Annapolis condominium building where shooting suspect James W. von Brunn was thought to live.  (Steve Ruark / Associated Press)

Police search for evidence on 14th Street outside the museum.  (Alex Wong / Getty Images)

Police gather in front of the museum after the shooting.  (Win McNamee / Getty Images)

Police and SWAT team officers prepare outside the museum.  (Matthew Cavanaugh / EPA)

Police and FBI officers secure the area outside the museum.  (Matthew Cavanaugh / EPA)

A National Park Service helicopter flies in front of the Washington Monument as it circles the Holocaust Memorial Museum after the shooting.  (Win McNamee / Getty Images)

A National Park Service helicopter hovers over the Holocaust Memorial Museum as workers on top of the Bureau of Engraving building look on.  (Win McNamee / Getty Images)

Police officers suit up in body armor.  (Shawn Thew / EPA)

Law enforcement officers stand outside the Holocaust museum in Washington, D.C., after shots were exchanged between a gunman and security guards.  (Alex Brandon / Associated Press)

Mayor of Washington, D.C., Adrian Fenty, center, speaks at a news conference outside the Holocaust museum in Washington after a gunman opened fire at the museum.  (Michael Reynolds / EPA)

Washington, D.C., Mayor Adrian Fenty, right, and Metropolitan Police Chief Cathy Lanier brief reporters about the shooting that took place at the Holocaust museum in Washington, D.C.  (Mark Wilson / Getty Images)