Holocaust museum closed in wake of shooting

Stephen Tyrone Johns was shot and killed while working at the U.S. Holocaust Memorial Museum on Wednesday.

WASHINGTON (CNN) - The U.S. Holocaust Memorial Museum remained closed Thursday, its flags lowered to half-staff in tribute to a security guard who was killed trying to stop a man with a gun.

Authorities identified the suspect, who was wounded by other security guards, as 88-year-old white supremacist James von Brunn of Maryland.

The Metropolitan Police Department; the D.C. office of the FBI; the U.S. attorney's office and other federal and local officials will hold a news conference Thursday morning to discuss charges against von Brunn.

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