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At a Monument of Sorrow, A Burst of Deadly Violence

At 12:40 p.m. yesterday a man stepped through the doors of the U.S. Holocaust Memorial Museum. He took two paces, lowered his rifle at a security guard and, before anyone could react, opened fire in a popular national landmark.

By Michael E. Ruane, Paul Duggan and Clarence Williams

© 2009 The Washington Post Company